1. Use the illustration below to answer this question.
Katie sent a soccer ball toward Andy on a flat field.  The ball started moving because of which force?
a. her kick 
b. gravity 
c. friction 
d. air inside the ball

2. Use the illustration below to answer this question.
Katie sent a soccer ball toward Andy on a flat field.  The ball started moving because of which force?
a. her kick 
b. gravity 
c. friction 
d. air inside the ball

3. In physical science, a push or a pull is called a(n) ______
Force
Acceleration
Ineritia
motion

4. In physical science, a push or a pull is called a(n) ______
Force
Acceleration
Ineritia
motion

5. You can show the motion of an object on a line graph in which you plot distance against
Velocity
Time
Speed
Direction

6. You can show the motion of an object on a line graph in which you plot distance against
Velocity
Time
Speed
Direction

7. Which of the following is an example of using Newton's 3rd law?
A bat exerts a force on a ball
A rocket’s thrusters push the shuttle upward
A rubber ball bouncing
All of the above

8. Which of the following is an example of using Newton's 3rd law?
A bat exerts a force on a ball
A rocket’s thrusters push the shuttle upward
A rubber ball bouncing
All of the above

9. 90 km/h west is an example of a car's
Speed
Acceleration
Direction
velocity

10. 90 km/h west is an example of a car's
Speed
Acceleration
Direction
velocity

11. Which of the following is an example of changing acceleration?
A car stopped at a red light
A truck traveling 65 miles per hour north
A boat sailing south at 5 knots
A person jogging at 3 meters/second along a winding path

12. Which of the following is an example of changing acceleration?
A car stopped at a red light
A truck traveling 65 miles per hour north
A boat sailing south at 5 knots
A person jogging at 3 meters/second along a winding path

13. Which can occur when an object is accelerating? 
It slows down
It speeds up
It changes direction
All of the above

14. Which can occur when an object is accelerating? 
It slows down
It speeds up
It changes direction
All of the above

15. Which of the following is an example of changing acceleration?
A truck stopped at a traffic light in a large city
A bus traveling at 45 mph east to cross the river
A ship traveling west across the Pacific at 10 knots
A quarterback running 3 m/s to the right then left to avoid a tackle

16. Which of the following is an example of changing acceleration?
A truck stopped at a traffic light in a large city
A bus traveling at 45 mph east to cross the river
A ship traveling west across the Pacific at 10 knots
A quarterback running 3 m/s to the right then left to avoid a tackle

17. An automobile is moving down a perfectly level and straight road with a constant speed of 80 kilometers/hour. Which statement is true? 
The only force acting on the car is gravity
The only force acting on the car is friction
The only forces acting on the car are friction and the force produced by the engine to make the wheels turn.
The net force on the car is zero.

18. An automobile is moving down a perfectly level and straight road with a constant speed of 80 kilometers/hour. Which statement is true? 
The only force acting on the car is gravity
The only force acting on the car is friction
The only forces acting on the car are friction and the force produced by the engine to make the wheels turn.
The net force on the car is zero.

19. Pauline is asked to discuss how the amount of force affects the motion of a 2-kg object, a 3-k object, a 4-kg object, and a 5-kg object. If the same amount of force is applied to each object, which statement should Pauline make regarding the motion of the objects? 
Objects with less mass will move more slowly than objects with greater mass.
Objects with less mass will move faster than objects with greater mass.
All of the objects will move at the same speed because the applied force is the same.
There is no predictable relationship between the mass of an object and its motion.

20. Pauline is asked to discuss how the amount of force affects the motion of a 2-kg object, a 3-k object, a 4-kg object, and a 5-kg object. If the same amount of force is applied to each object, which statement should Pauline make regarding the motion of the objects? 
Objects with less mass will move more slowly than objects with greater mass.
Objects with less mass will move faster than objects with greater mass.
All of the objects will move at the same speed because the applied force is the same.
There is no predictable relationship between the mass of an object and its motion.

21. The Mariner spacecraft was launched into deep space several years ago
The Mariner spacecraft was launched into deep space several years ago. It has no engine, but will continue to move through space at its constant launch speed and direction unless acted upon by the gravitational field of a star or planet. This is best described by:
Newton’s 1st Law (Law of Inertia)
Newton’s 2nd Law (Force and Acceleration)
Newton’s 3rd Law (Action and Reaction

22. The Mariner spacecraft was launched into deep space several years ago
The Mariner spacecraft was launched into deep space several years ago. It has no engine, but will continue to move through space at its constant launch speed and direction unless acted upon by the gravitational field of a star or planet. This is best described by:
Newton’s 1st Law (Law of Inertia)
Newton’s 2nd Law (Force and Acceleration)
Newton’s 3rd Law (Action and Reaction

23. Mass and weight are related, but not the same
Mass and weight are related, but not the same. Which of the following statements is true about MASS. 
Mass is a measure of the force of gravity.
Mass can change with position.
Mass is the same on the moon as on Earth.
Mass is equal to w x 9.8 on the moon.

24. Mass and weight are related, but not the same
Mass and weight are related, but not the same. Which of the following statements is true about MASS. 
Mass is a measure of the force of gravity.
Mass can change with position.
Mass is the same on the moon as on Earth.
Mass is equal to w x 9.8 on the moon.

25. Sam was learning how to roller-skate. He did not want to go fast
Sam was learning how to roller-skate. He did not want to go fast. On which kind of floor surface would Sam travel the slowest? 
Carpet
Concrete
Tile
wood

26. Sam was learning how to roller-skate. He did not want to go fast
Sam was learning how to roller-skate. He did not want to go fast. On which kind of floor surface would Sam travel the slowest? 
Carpet
Concrete
Tile
wood

27. A ramp is an example of a simple machine called a(n) 
Inclined plane
Wedge
Lever
pully

28. A ramp is an example of a simple machine called a(n) 
Inclined plane
Wedge
Lever
pully

29. For work to be done on an object,
Some force need only be exerted on the object.
The object must move some distance as a result of a force.
The object must move, whether or not a force is exerted on it.
The object must not move.

30. For work to be done on an object,
Some force need only be exerted on the object.
The object must move some distance as a result of a force.
The object must move, whether or not a force is exerted on it.
The object must not move.

31. Pulley Wheel and axle Screw lever
Which simple machine is contained within the doorknob of your classroom door? 
Pulley
Wheel and axle
Screw
lever

32. Pulley Wheel and axle Screw lever
Which simple machine is contained within the doorknob of your classroom door? 
Pulley
Wheel and axle
Screw
lever

33. How does a single fixed pulley make work easier?
It multiplies the effort force.
It increases the mass of the load.
It changes the direction of the force.
It multiplies the effort force and changes the direction of the force.

34. How does a single fixed pulley make work easier?
It multiplies the effort force.
It increases the mass of the load.
It changes the direction of the force.
It multiplies the effort force and changes the direction of the force.

35. A screwdriver is used to open a paint can
A screwdriver is used to open a paint can. How are the magnitudes and directions of the input and output forces related? 
The output force is greater than the input force, and the directions of the forces are opposite.
The output force is less than the input force and the input force, and the directions of the forces are opposite.
The output force is greater than the input force, and the direction of both forces is the same.
The output force is less than the input force, and the direction of both forces is the same.

36. A screwdriver is used to open a paint can
A screwdriver is used to open a paint can. How are the magnitudes and directions of the input and output forces related? 
The output force is greater than the input force, and the directions of the forces are opposite.
The output force is less than the input force and the input force, and the directions of the forces are opposite.
The output force is greater than the input force, and the direction of both forces is the same.
The output force is less than the input force, and the direction of both forces is the same.

37. The size of the gravitational force between two objects depends on their ____.
Frictional forces
Inertia
Masses and the distance between them
Speed and direction

38. The size of the gravitational force between two objects depends on their ____.
Frictional forces
Inertia
Masses and the distance between them
Speed and direction

39. Which explains what happens to the force of gravity between two objects if the distance between them decreases? 
Gravity disappears.
Gravity remains the same.
Gravity increases.
Gravity decreases.

40. Which explains what happens to the force of gravity between two objects if the distance between them decreases? 
Gravity disappears.
Gravity remains the same.
Gravity increases.
Gravity decreases.

41. Create and attractive force. Exert no force. Destroy its energy
Complete the following sentence.
Opposite poles of a magnet ...
Repel or push away.
Create and attractive force.
Exert no force.
Destroy its energy

42. Create and attractive force. Exert no force. Destroy its energy
Complete the following sentence.
Opposite poles of a magnet ...
Repel or push away.
Create and attractive force.
Exert no force.
Destroy its energy

43. Girl X in the diagram above weighs 60 lbs
Girl X in the diagram above weighs 60 lbs. and Girl Y in the diagram weighs 75 lbs. Which statement describes what will happen if the girls push off from one another with their hands? (S8P5a)
Girl X will move farther than Girl Y.
Girl Y will move farther than Girl X.
Both girls will move the same distance.
Girl X will not move while Girl Y moves out.

44. Girl X in the diagram above weighs 60 lbs
Girl X in the diagram above weighs 60 lbs. and Girl Y in the diagram weighs 75 lbs. Which statement describes what will happen if the girls push off from one another with their hands? (S8P5a)
Girl X will move farther than Girl Y.
Girl Y will move farther than Girl X.
Both girls will move the same distance.
Girl X will not move while Girl Y moves out.

45. In the type of circuit pictured above, the electrons only have one path to travel along, like a string of lights on a Christmas tree. If one light globe does not work, then the whole circuit is broken and will not work. What kind of circuit is this?
Series
Parallel
Static
Alternating current

46. In the type of circuit pictured above, the electrons only have one path to travel along, like a string of lights on a Christmas tree. If one light globe does not work, then the whole circuit is broken and will not work. What kind of circuit is this?
Series
Parallel
Static
Alternating current

47. The two disadvantages of a series circuit that make it impractical for use in building a school are that the more components there are in a series the greater the circuit's resistance and 
Series circuits are much too complicated and difficult to create.
The number of components that can be placed in a series circuit is limited.
The flow of electrons is much weaker in a series circuit.
If one component of a series circuit fails, all components fail.

48. The two disadvantages of a series circuit that make it impractical for use in building a school are that the more components there are in a series the greater the circuit's resistance and 
Series circuits are much too complicated and difficult to create.
The number of components that can be placed in a series circuit is limited.
The flow of electrons is much weaker in a series circuit.
If one component of a series circuit fails, all components fail.

49. Which of the following is shown in the diagram above?
Short circuit
Series circuit
Parallel circuit
Alternating current

50. Which of the following is shown in the diagram above?
Short circuit
Series circuit
Parallel circuit
Alternating current

51. A parallel circuit contains 3 bulbs: red, yellow, and blue
A parallel circuit contains 3 bulbs: red, yellow, and blue. If the red bulb blows out, what effect will it have on the other two bulbs? 
All the bulbs will stop working
The other bulbs will not be affected
The blue will go out, but the yellow will continue to work
The yellow will go out, but the blue will keep working

52. A parallel circuit contains 3 bulbs: red, yellow, and blue
A parallel circuit contains 3 bulbs: red, yellow, and blue. If the red bulb blows out, what effect will it have on the other two bulbs? 
All the bulbs will stop working
The other bulbs will not be affected
The blue will go out, but the yellow will continue to work
The yellow will go out, but the blue will keep working

53. Which BEST describes a parallel circuit?
Electricity flows along one pathway.
The flow of electricity comes from one source.
Electricity flows along more than one pathway.
The flow of electricity comes from more than one source.

54. Which BEST describes a parallel circuit?
Electricity flows along one pathway.
The flow of electricity comes from one source.
Electricity flows along more than one pathway.
The flow of electricity comes from more than one source.

55. Shaina uses a shovel to dig a hole to plant a tree
Shaina uses a shovel to dig a hole to plant a tree. A shovel is an example of a compound machine because it is made up of what two simple machines? 
Wheel and axle and lever
Lever and wedge
Screw and wedge
Inclined plane and wedge

56. Shaina uses a shovel to dig a hole to plant a tree
Shaina uses a shovel to dig a hole to plant a tree. A shovel is an example of a compound machine because it is made up of what two simple machines? 
Wheel and axle and lever
Lever and wedge
Screw and wedge
Inclined plane and wedge