1. GrudgeBall  
Let's review!

2. Game Directions 
Each team of 6 will begin the game with a total of 10 X's. 
Each group will be given time to answer each question presented. 
If the team gets the correct answer, they can take away 2 X's from another team. 
You cannot take away your own X's. 
If the team gets the correct answer, they will be given a chance to shoot.
"two pointer"
"three pointer" 
A made goal from the "two pointer" line = 4 X's  removed
A made goal from the "three pointer " line=  5 X's removed. 
To earn X's back, teams will answer questions correctly. 

3. A car traveling to the West begins to slow down as it approaches a traffic light. 
Which statement concerning its acceleration in the West direction is correct?
a. Both its accelerations and its velocity are positive.
b. Its acceleration is negative, but its velocity is positive.
c. Both its acceleration and its velocity are negative.
d. Its acceleration is positive, but its velocity is negative. 

4. (Multi-Select Question) Select three choices below that accurately describe this graph.
a. Both waves have the same frequency. 
b. Both waves are electromagnet waves.
c. Both waves have the same amplitude.
d. Don’t Select. 
e. Both waves have the same wavelength. 

5. A basketball player shoots a free-throw
A basketball player shoots a free-throw. The motion of the basketball is shown. 
Describe the motion of the basketball after it leaves the player's hands and explain how this is an example  of acceleration change. 
a. The ball moves downwards and then upwards in an arc. This is acceleration because of the change in force pulling the ball downwards. 
b. The ball travels in curved trajectory in a single direction with decreasing speed. This is acceleration because of the change in direction.   
c. The ball travels in curved trajectory in a single direction with decreasing speed. This is acceleration because of the change in velocity. 
d. The ball travels in a horizontal line to the basket with increasing speed. This is acceleration because of the change in velocity. 

6. (Multi-Select Question)
Select three choices that correctly match the letters shown in the diagram above? 
a. Don’t Select
b. Part D- Trough
c. Part B- Amplitude 
d. Don’t Select
e. Letter A- Wavelength 
f.  Part B- Frequency 

7. Newton’s 2nd Law of Motion states that force is equal to the mass times the acceleration. 
If the force acting on the object stays the same but the mass increases, what is most likely to happen to the acceleration of the object?
a. Acceleration will stay the same
b. Velocity will  change but the speed and direction will remain constant
c. Acceleration will increase 
d. Acceleration will decrease

8. A force of 5N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within five seconds along a level surface. 
What change would most likely require additional force to produce the same results?
a. If friction was reduced between the box and surface it would require more force
b. If the mass of the box was increased it would require more force
c. If the mass of the box was decreased it would require more force
d. if the friction was increased between the box and surface it would 
require less force 

9. Examine the following sine pattern diagram.
Two-Part Question
Part One: The number of waves that occur every second is called the _______?
Part Two: For the wave shown in this diagram, what is the frequency?
a. Part One: 2 waves/sec 
Part Two: frequency
b. Part One: wavelength
Part Two: 1 wave/sec
c. Part One: frequency
Part Two: 2 waves/sec

10. A small car and big truck are driving down a two-lane highway on a rainy day. The car is in the left lane, and the truck is in the right lane. Both vehicles are traveling North at the same speed (70 MPH). Both drivers see a traffic jam up ahead, and they both slam on theirs brakes with all of their might at the same moment. The car comes to a halt after traveling 30 feet. The truck, however, does not halt until 120 feet. 
Why does it take the truck longer to come to a complete stop even though both vehicles were moving at the same speed?
a. Because vector quantities and scalar quantities are not the same thing
b. Because both cars were maintaining the same constant velocity
c. The mass of the car is much greater than the mass of the truck
d. The mass of the truck is much greater than the mass of the car. 

11. If you press down on a piano key, let's say middle C, it generates a sound wave. Now, imagine that you press it down much harder so that it still plays the same tone but more loudly.
How would pressing the key down harder change the sound wave produced?
a. The sound wave's frequency would increase.
b. The sound wave's energy would decrease.
c. The sound wave's amplitude would be larger.

12. Select the correct value for the wavelength of this wave
Select the correct value for the wavelength of this wave., rounded to the nearest tenth of a centimeter.
a .wavelength is 1inch
b. wavelength is 2.3 cm
c. wavelength is 1.3 cm

13. If the speed of a wave is 260 m/s, and the wavelength is 20m, what is its frequency?
a. frequency is 240m
b. frequency is 13 Hz
c. frequency is 13 m/s

14. If you are injured or sick, you may have to go to the hospital to receive special medical treatment involving waves.  
Which two kinds of electromagnetic waves do doctors often use to look inside of patients without surgery? 
a. X-ray and gamma waves can propagate through our bodies to create visual images. 
b. Light waves and sound waves can enable a doctor to look inside our bodies.
c.  Ultraviolet and Infrared waves can propagate through our bodies to create pictures. 

15. Free-body diagrams show the magnitude and direction of all forces acting on an object. 
Multi-Select Question 
Select the answer choices below that describe the motion of the object represented in the 
Free Body Diagram above ( Select 2 of 5 choices).
a. The object will not have any acceleration up or  down.
b. The object will have upward motion. 
c. The object will accelerate to the left.
d. The object will accelerate to the right.
e.  The object will have downward motion. 

16. a. c. e. b. d. f. Multi-Select Question
Which of the following graphs represent objects demonstrating changes in position? 
(Select 3 of 5 choices
a. 
c. 
e.  b.
d. 
f. 

17. If the frequency of a wave is 12Hz, and the wavelength is 7m, what is its speed?
a. wave speed is m/s
b. waves speed is 84 Hz
c. wave speed is 84 m/s

18. A mosquito flying over a highway strikes the windshield of a truck traveling at a speed of 100 kilometers per hour (62 miles per hour). Compared to the force magnitude of the truck on the mosquito during this collision, the force magnitude of the mosquito on the truck is...?
a. the magnitude is significantly greater
b. the magnitude is exactly the same
c. the magnitude is significantly less
d. the magnitude is somewhat less

19. The speed of a wave is 33 m/s, and the frequency of this 17 Hz
The speed of a wave is 33 m/s, and the frequency of this 17 Hz. What is the wavelength? (round to the nearest hundredth)
a. wavelength is 1.94 Hz
b. wavelength is 1.94 m.
c. wavelength is 561 m.

20. An air traffic controller monitoring radar signals determines that an aircraft is flying at the wrong altitude. She communicates with the airplane's piolet via radio to alert them about this. 
Which two kinds of waves was the air traffic controller using, and what kind of waves are they?
a. Microwaves and Gamma rays. Microwaves and gamma rays are mechanical. 
b. Radar waves and Radio. Radar is mechanical. Radio waves are electromagnetic. 
c. Microwaves and Radio waves. Both of these are electromagnetic waves. 

21. The acceleration due to gravity on Earth is 9. 8 ,/s2
The acceleration due to gravity on Earth is 9.8 ,/s2. The force acting on an object on Earth is 16 Newtons. 
What is the mass of this object on Earth?
a. Mass of the object is 2.6 kilograms 
b. The object's mass is kilograms 
c. The mass is kilograms 
d. Mass of the object is 1.63 kilograms 

22. Two cars collide head-on
Two cars collide head-on. At every moment during the collision, the magnitude of the force the first car exerts on the second is exactly equal to the magnitude of the force the second car exerts on the first. 
How is this collision an example of Newton’s 3rd Law of Motion? 
a. We do not have enough information to determine the force of the impact as we do not know the mass or the acceleration of the cars before the collision.
b. Both cars had momentum and inertia before the collision. After the collision, both cars no longer have inertia or momentum.
c. After the collision, neither car has any velocity, so no momentum is present. It would take an unbalanced force to make the cars move from the location.
d. Since the collision was equal and opposite, we can say that an equal force was exerted on both cars.

23. Both dogs in the picture below have the same mass, and they both are exerting the same amount of force on the rope toy. What is most likely to happen when the rope toy breaks in the middle as a result of the forces the dogs are exerting?
a. The dogs will be thrown backwards, in opposite directions from each other, the same distance.
b. One dog will be thrown backwards while the other dog will be able to move forwards.
c. The breaking of the rope toy will create unbalanced forces that only affect one of the dogs, causing one dog to be thrown backwards.
d. As the two dogs are the same mass, neither dog will be thrown backwards.

24. The diagram below shows a 5
The diagram below shows a 5.00 kg block at rest on a horizontal, frictionless table. Gravity is acting on this block, and the acceleration of gravity on Earth is m/s2.
a.                        b.                      c.                           d. 

25. Part one: Contrast transverse waves and longitudinal waves.
Two Part Question
Part one: Contrast transverse waves and longitudinal waves.
Part two: Are these waves mechanical or electromagnetic
a. Part One: Transverse-particles move parallel, longitudinal-particles move perpendicular Part Two: These types of wave are mechanical, not electromagnetic.
b. Part One: Transverse-particles move perpendicular, longitudinal-particles move parallel Part Two: These types of wave are mechanical, not electromagnetic.
c. Part One: Transverse-particles are reflected, longitudinal-particles are refracted Part Two: These types of wave are electromagnetic, not mechanical.

26. Describe the motion of the car during this time period and explain what must happen to change the car's motion.  
a.  A distance vs. time graph will not give the information needed to determine the motion of the card. A speed vs. time graph will be needed.
b. The car is increasing in speed as it moves down a highway. Since the graph shows a straight (horizontal) line, the highway must be a straight road with no curves. To change the car’s motion, it would have to be acted upon by balanced forces.
c.  The car is stationary during this time. Since distance did not change and remained constant, the car must have stayed in the same spot. To change the car’s motion, it would have to be acted upon by unbalanced forces.
d. The car is traveling at a constant speed. A straight line on a distance vs time graph reveals that the object’s speed remained the same. To change the car’s motion, it would have to be acted upon by unbalanced forces.
The graph below is about a car in Smyrna, Tennessee during a 60- minute time period from 11 AM to 12PM on a Thursday in December during lunch time.

27. You are using a telescope to look up into the night sky, and you observe a blinking light from a satellite in orbit around the earth.  
What logical conclusion can you make about the properties of light from this observation? 
a. light cannot travel through vacuums, but it can travel through solids, liquids, and gases
b. Light can travel through a vacuum. It can also travel through any medium. 
c. Light can travel through a vacuum. It can also travel through a gas. 

28. a. This is a sound wave. They are mechanical waves and require a medium. 
b. This is a radio wave. These waves are electromagnetic and do not require a medium. 
c. This is an electromagnetic air pressure wave. These waves do not require a medium. 
Identify the wave type shown above and describe two key characteristics of this wave. 

29. You throw a ball directly upwards to the ceiling
You throw a ball directly upwards to the ceiling. It travels up, slows down, reverses direction, and falls to the floor. 
Which of the following statements about the ball's motion must be true?
a. After the ball leaves your hand, acceleration is constant until the ball hits the floor. 
b. The acceleration increases as the ball approaches the floor.
c. The acceleration is smallest just before it hits the floor. 
d. The acceleration is  the smallest as the ball approaches the ceiling. 

30. (Multi-Select Question)
On Earth an astronaut weighs 980 Newtons (about 220 pounds) and has a mass of 100 kilograms. On the Moon, the same astronaut weighs Newtons (about 37 pounds).
What is the mass of this astronaut on the Moon, and what is the acceleration acting on the astronaut’s body when she is standing on the Earth? (select 2 choices)
a. Force on the Moon: Newtons
b. Mass on the Moon: 37 kilogram 
c. Acceleration on Earth: 1.6 m/s/s
d. Acceleration on Earth: 9.8 m/s/s
e. Mass on the Moon: 100 kilogram 

31. You are in your car waiting for the light to turn green at a traffic light. You hear loud music coming from the car in the next lane. The music is loud enough that you can see your rearview mirror shaking. 
What would happen to your rearview mirror if the amplitude of the sound waves from the other car was increased?
a. Your mirror would shake at varying rates, faster and then slower. Then it would stop.
b. Your mirror would shake more as more energy is transferred to your surroundings
c. Your mirror would shake less as the sound wave energy dissipates.