Presentation on theme: "EARN EXTRA POINTS TOWARDS YOUR SCIENCE FINAL GRADE"— Presentation transcript:
1EARN EXTRA POINTS TOWARDS YOUR SCIENCE FINAL GRADE PHYSICS REVIEW GAMEEARN EXTRA POINTS TOWARDS YOUR SCIENCE FINAL GRADE
2WHAT IS DISTANCE? A. It is the length of a path between two places. B. It is the length of time between two places.C. It is the direction of the path between two places.D. It is the unit used to measure length.
3HOW IS SPEED DEFINED?A. Time divided by distanceB. Time divided by directionC. Distance divided by timeD. Distance divided by direction
4A. 55 miles per hour B. 40 miles per hour C. 25 miles per hour WHAT IS THE AVERAGE SPEED OF A TRUCK THAT TRAVELED 120 MILES IN 3 HOURS?A. 55 miles per hourB. 40 miles per hourC. 25 miles per hourD. 4 miles per hour
5WHAT IS THE DIFFERENCE BETWEEN SPEED AND VELOCITY? A. Speed includes direction and velocity does not.B. Velocity includes direction and speed does not.C. Neither include direction.D. Speed and velocity are the same.
6WHICH OF THESE HAS THE GREATEST VELOCITY? A. a cheetah running north at30 m/sB. a balloon rising upward at20 m/sC. a truck moving south at 35 m/sD. a dog walking east at 3 m/s
7A. 50 mph B. 50 mph eastward C. 25 mph D. 25 mph eastward WHAT IS THE VELOCITY OF A CAR THAT DRIVES EAST FOR 2 HOURS AT A CONSTANT SPEED OF 50 mph?A. 50 mphB. 50 mph eastwardC. 25 mphD. 25 mph eastward
8A. the same speed? B. the same velocity? C. both? D. neither? DOES A DOG RUNNING SOUTH AT 2 m/s AND A BALL ROLLING SOUTH AT 2 m/s HAVE:A. the same speed?B. the same velocity?C. both?D. neither?
9A BALLOON MOVES UPWARD A DISTANCE OF 4 m IN 2 s A BALLOON MOVES UPWARD A DISTANCE OF 4 m IN 2 s. WHAT IS THE BALLOON’S VELOCITY?A. 2 m/sB m/sC. 2 m/s upwardD m/s upward
10WHICH OF THESE HAS TO OCCUR FOR A CHANGE IN VELOCITY TO TAKE PLACE? A. A change of speedB. A change of directionC. A change in both speed or directionD. None of these
11Why is force considered a vector quantity? A. Its size can be measured in newtons.B. It acts in a particular direction.C. It can be balanced.D. Its measurement is both size and direction.
12A girl standing on the ground exerts a force on the ground of 490 newtons. Which best describes the force she exerts on the ground?A newtonsB newtons downwardC newtons sidewaysD newtons upwards
13Which of the following forces has the smallest size? A. a 20 N force acting eastB. a 50 N force acting upC. a 70 N force acting westD. a 70 N force acting down
14A boy pushes a box 50 N east and a girl pushes a chair 50 N west A boy pushes a box 50 N east and a girl pushes a chair 50 N west. How do the two forces compare?A. The forces have the same size but different direction.B. The forces have the same size and same direction.C. The forces have a different size and direction.D. None of the above
15A toy rocket is launched straight up into the air with a force of 16N A toy rocket is launched straight up into the air with a force of 16N. The weight of the rocket, 4 N, pulls down on the rocket. What is the net force on the rocket when its launched?A. 4 N upwardB. 12 N upwardC. 16 N downwardD. 20 N downwards
16Two people push on a ball from opposite sides Two people push on a ball from opposite sides. One exerts a force of 80 N and the other exerts a force of 60 N. What is the size of the force?A. 20 NB. 40 NC. 60 ND. 100 N
17When are forces on an object balanced? A. When the combined forces are identical in size and direction.B. When the combined forces are smaller than the balanced force.C. When the combined forces are larger than the balanced force.D. When the combined forces have the same effect as no force.
18A static object is able to remain at rest because: A. The force of gravity is always acting on it.B. Balanced forces are acting on it.C. Compression forces are acting on it.D. Tension keeps it from being pulled apart.
19You put a plate on the table. What are the forces acting on the plate? A. Friction & gravityB. Friction & elastic forcesC. Gravity & elastic forcesD. Gravity & tension
20Which shows the cumulative effect of forces? A. The speed of a ball after being hit by a batB. The length of a shadowC. The volume of a cereal box after it’s openedD. The average time of a marathon’s runners
21What is the average speed of a truck that travels 180 km in 2 hours? A. 90 km/hB. 90 km/2hC km/hD km/h
22A train is traveling west at 50 km/h A train is traveling west at 50 km/h. A few minutes later, the tracks change direction and the train travels south at the same speed. Which statement is true?A. The speed of the train changed.B. The average speed of the train changed.C. The velocity of the train stayed the same.D. The velocity of the train changed.
23If a car travels 20 miles in 20 minutes, you can calculate its: A. VelocityB. Average speedC. DirectionD. Change in speed
24The distance vs. time graph for an object traveling at a constant speed is a: A. Curved lineB. Horizontal lineC. Vertical lineD. Diagonal line
25A short stack and a taller stack of books is pushed across a desk A short stack and a taller stack of books is pushed across a desk. Which statement is true about the force needed to push each stack?A. Greater force is needed to push the short stack.B. Greater force is needed to push the taller stack.C. The force required to move each stack is the same.D. All forces are unbalanced.
26Which statement is true about all forces? A. All forces cause acceleration.B. All forces cause a change in motion.C. All forces have magnitude and direction.D. All forces are unbalanced.
27Which jar requires the most force to lift it? A. A jar full of cotton ballsB. A jar full of plastic foam chipsC. A jar full of penniesD. A jar full of sawdust
28Earth is a sphere because: A. it is much less massive than the sun.B. it is millions of miles from the sun.C. gravity pulls any bulges toward the center.D. there was not enough gravity for it to become a star.
29Which result occurs when balanced forces act on an object? A. Its state of motion does not change.B. It changes direction.C. It slows down.D. It speeds up.
30A ball rolls slowly toward a person who then kicks the ball hard in the same direction it had been rolling. What happens to the motion of the ball?A. The ball speeds up.B. The ball slows down.C. The ball continues at the same speed.D. The ball travels at the same speed but changes direction.
31A boy pushes a wagon that is rolling down a hill so that it will roll faster. Which of the following describes the force the boy applies?A. a balanced forceB. a force in the direction of the wagon’s motionC. a force in the direction opposite of the wagon’s motionD. a force at the right angle to the wagon’s motion
32A bicycle turns around a corner A bicycle turns around a corner. What can be said about the forces on the bicycle as it turns?A. The forces are balanced.B. The forces are unbalanced.C. There are no forces on the bicycle.D. Nothing. There is not enough information.
33A soccer player stops a rolling ball with her foot A soccer player stops a rolling ball with her foot. What kind of force or forces could she have applied?A. two balanced forcesB. a force underneath the ballC. a force in the direction of the ball’s motionD. a force in the direction opposite of the ball’s motion
34A box sliding along the floor comes to a stop. Why? A. gravityB. rolling frictionC. no forces, it just came to a stop.D. sliding friction and gravity
35If you increase the force you exert on an object, you will A. decrease its massB. increase its massC. decrease its accelerationD. increase its acceleration
36You are in an elevator moving upward from the second floor to the ninth. From the reference point of the elevator, you areA. going upB. going downC. not movingD. changing velocity
37A family drives across the state to visit relatives A family drives across the state to visit relatives. They drive for one hour at 60 km/h and one hour at 90 km/h. What is their average speed?A. 30 km/hB. 60 km/hC. 75 km/hD. 150 km/h
38You exert a force to push a box across the floor You exert a force to push a box across the floor. You exert the same amount of force to pull the box back. How are the two forces different?A. The direction is different.B. The amount of force is different.C. The pushing force is balanced, but the pulling force is unbalanced.D. The forces are not different.
39Two students push equally on a box in opposite directions Two students push equally on a box in opposite directions. What happens to the box?A. The box moves to the right.B. The box moves to the left.C. The box does not move.D. The box tips over.
40Which of the following keeps a bag of sand connected to a spring scale? A. The downward pull of gravityB. The elastic force of the springC. The upward push of gravityD. The mass of the sand bag
41Which force causes the downward curving motion of a basketball in flight? A. The balanced force exerted by the basketball playerB. The balanced force of gravityC. The unbalanced force exerted by the basketball playerD. The unbalanced force of gravity
42Which force is responsible for the formation of the planets? A. gravityB. frictionC. elasticD. acceleration
43If you exert the same force on an object with low mass and an object with a higher mass, what will happen?A. The object with lower mass will increase its mass.B. The object with the higher mass will increase in mass.C. The object with lower mass will have greater acceleration.D. The object with higher mass will have greater acceleration.
44A 1-kilogram object accelerates when a force of 10 newtons acts on it A 1-kilogram object accelerates when a force of 10 newtons acts on it. If the force doubles in size, the acceleration willA. increaseB. decreaseC. stay the sameD. become zero
45The force of gravity causes A. any two objects to attract one another.B. any two objects to repel one another.C. any two objects to decrease in mass.D. any two objects to increase in mass.
46Friction is a force that A. opposes an object’s motion.B. does not exist when surfaces are very smooth.C. decreases with larger mass.D. all of the above
47Rolling friction A. is usually less than sliding friction. B. makes it difficult to move objects on wheels.C. is usually greater than sliding friction.D. is the same as fluid friction.
48If Earth’s mass doubled, your weight would A. increase because gravity increased.B. decrease because gravity increased.C. increase because gravity decreased.D. not change because you are still on Earth.
49A Force A. is expressed in newtons B. can cause an object to change speed.C. is a push or a pull.D. all of the above
50If passengers on an airplane watch another plane passing them, their reference point is the A. sky.B. ground.C. other plane.D. plane they are on.
51Two forces act on an object. One force is 10 N north Two forces act on an object. One force is 10 N north. The other is 5 N south. The object experiences a net force ofA. 5 N southB. 15 N northC. 50 N northD. 5 N north
52When velocity decreases, this could be referred to as A. acceleration.B. deceleration.C. negative acceleration.D. all of the above
53The moving blades on a windmill are an example of A. centripetal acceleration.B. positive acceleration.C. negative acceleration.D. deceleration.
54Which of the following is NOT an example of a force being exerted? A. pushing a door openB. typing on a computer keyboardC. sitting in a chairD. none of the above
55Balanced forces applied to an object A. produces a net force of zero.B. changes the direction of a moving object.C. causes an object at rest to start moving.D. produces a negative force.
56The gravitational force of the Earth in relation to the gravitational force of everything else on Earth represent a(n) ______ that causes everything to fall toward the center of the Earth.A. unbalanced forceB. balanced forceC. centrifugal forceD. centripetal force
57The planets are held in their orbit by _____ forces. A. balancedB. unbalancedC. centrifugalD. centripetal
58You are training to run the 100 m race at a track and field meet You are training to run the 100 m race at a track and field meet. You time yourself and find you can run it in 10 seconds. How fast are you able to run it?A. 1 m/sB. 10 m/sC. 100 m/sD 1000 m/s
59You ride your bike north for 100 m at a constant speed of 5 m/s You ride your bike north for 100 m at a constant speed of 5 m/s. Your acceleration isA. 5 m/s/s forwardB. 20 m/s/s forwardC. 100 m/s/s forwardD. There is no acceleration.
60The air that comes out of the tiny holes of an air-hockey table is an example of A. net frictionB. frictionC. gas lubricantD. liquid lubricant
61You ride your bike around the block at an average speed of 11 km/h You ride your bike around the block at an average speed of 11 km/h. What changes?A. your velocityB. your accelerationC. Both A and BD. Neither A nor B
62Your class and another class have a tug-of-war contest Your class and another class have a tug-of-war contest. For your class to win, your class mustA. create a balanced force with the other class.B. have a greater force in the opposite direction.C. have a greater force in the same direction.D. create a net force of zero with the other class.
63One Saturday, you go on a picnic One Saturday, you go on a picnic. Although there is a slight breeze, the napkins stay on the tablecloth because ofA. sliding frictionB. rolling frictionC. fluid frictionD. static friction
64An autumn breeze blows leaves from the trees An autumn breeze blows leaves from the trees. Although the leaves are flying through the air, they are still experiencingA. sliding frictionB. rolling frictionC. fluid frictionD. static friction
65Venus and Earth have nearly the same mass Venus and Earth have nearly the same mass. Therefore the gravitational pull from the sun is approximatelyA. the same for both.B. greater for Venus because it’s closer to the sun.C. less for Venus because it’s closer to the sun.D. greater for Earth because it’s farther from the sun.
66A feather and a rock dropped at the same time from the same height would land at the same time when droppedA. by Galileo in Italy.B. by Newton in England.C. by an astronaut on the moon.D. by an astronaut in the space shuttle.
67An object is in projectile motion if A. it is thrown on a horizontal path.B. it is accelerated downward by gravity.C. it does not accelerate horizontally.D. all of the above
68Newton’s first law of motion applies A. to moving objects.B. to objects that are not moving.C. Both A and BD. Neither A nor B
69Galileo proved that the rate at which an object falls A. increases with an increase in mass.B. decreases air resistance.C. is not affected by mass.D. increases with a decrease in mass.
70Parachutes slow skydivers to a safer terminal velocity because parachutes A. increase air resistance.B. decrease air resistance.C. increase gravitational pull.D. decrease gravitational pull.
71Newton’s third law of motion states that if a force is exerted on an object, another force occurs thatA. is equal in size and opposite in direction.B. is in the same direction and size.C. is equal in speed and opposite in direction.D. is in the same direction and speed.
72You, sitting in a chair, is an example of Newton’s A. second law.B. first and third laws.C. second and third laws.D. first and fourth laws.
73An object is falling through the air at a constant rate An object is falling through the air at a constant rate. Which force is balanced with the force of gravity?A. Frictional force B. Tension force C. Elastic force D. Centripetal force
74You have a container with 20N of water You have a container with 20N of water. After a rock is added, the weight of the water and the rock is 23N. What is the bouyant force on the rock?A. 0 N B. 3 N C. 23 N D. 43 N