EverlyIvery CMA 3 Review - waves, force & motion

What does a flat line on a velocity-time graph indicate about the object's motion?

• The object is accelerating.

• The object is at rest.

• The object is moving at a constant velocity.

• The object's velocity is decreasing.

Considering the performance on a standard track, how do Car A and Car B compare in terms of achieving their top speeds?

• Car A reaches its top speed faster than Car B, demonstrating superior acceleration.

• Car B reaches its top speed faster than Car A, demonstrating superior acceleration.

• Both cars reach their top speed at the same time, showing equal acceleration capabilities.

• Car A maintains a consistent speed, while Car B shows fluctuations before reaching its top speed.

Which TWO statements about the motion of this toy car are correct?

• The entire trip took 3 seconds.

• The toy car traveled a total distance of 20 m.

• The toy car did not begin moving for 6 seconds.

• The toy car had the greatest speed from 6-8 seconds.

• The toy car had the greatest speed from 12-16 seconds.

Which graph BEST illustrates the ball's movement from the moment it is released until it reaches the end of the track?

• Graph showing the ball rolls down the ramp; then it accelerates to a constant velocity.

• Graph showing the ball initially accelerates as it moves down the ramp; then the ball moves with a constant velocity.

• Graph showing the ball moves during the entire 9 seconds & is slowing down (deceleration)

• Graph showing the ball moving at constant velocity for the first few seconds, and then the ball stops moving forward

Which defines a wave crest?

• the lowest point of a transverse wave

• the highest point of a transverse wave

• the distance between identical points on two waves

• the distance between the resting position and the highest or lowest point of a wave

Imagine observing waves in the ocean and comparing them to the light from the sun. Which characteristic is common to both the ocean waves you see and the sunlight that reaches the Earth?

• Transverse mechanical waves and electromagnetic waves both have crests and troughs.

• Longitudinal mechanical waves and electromagnetic waves both have crests and troughs.

• Transverse mechanical waves and electromagnetic waves both have compressions and rarefactions.

• Longitudinal mechanical waves and electromagnetic waves both have compressions and rarefactions.

What is the girl doing to make the two waves in the ocean look different?

• Moving the spring with the same distance and direction

• Changing the speed and amplitude of the wave

• Moving the spring with different distances and directions

• Using two different springs

What distinguishes a transverse wave from a longitudinal wave in terms of particle motion?

• In transverse waves, particles move in a circular motion, while in longitudinal waves, they move in a square motion.

• In transverse waves, particles move parallel to the wave direction, while in longitudinal waves, they move perpendicular to the wave direction.

• In transverse waves, particles move perpendicular to the wave direction, while in longitudinal waves, they move parallel to the wave direction.

• There is no difference in particle motion between transverse and longitudinal waves.

What type of wave is sound classified as?

• Electromagnetic

• Mechanical

• Transverse

• Longitudinal

Through which medium(s) can sound waves travel?

• Solids only

• Liquids only

• Gases only

• Solid, liquid, and gas