Energy and Momentum Concepts Quiz

Which of the following best defines kinetic energy?

• The energy stored in an object due to its position.

• The energy an object possesses due to its motion.

• The energy released as heat.

• The energy stored in chemical bonds.

Tags

TX.112.45.C.7.C.

Tags

TX.112.45.C.7.D.

Which of the following is an example of simple harmonic motion?

• A car moving at constant speed on a straight road.

• A mass oscillating on a spring.

• Water boiling in a pot.

• A ball rolling down a hill.

Tags

TX.112.45.C.8.A.

Which type of wave requires a medium to travel and is characterized by particle vibrations parallel to the direction of wave propagation?

• Transverse wave

• Longitudinal wave

• Electromagnetic wave

• Surface wave

Tags

TX.112.45.C.8.B.

A 2 kg object is moving at 3 m/s. What is its kinetic energy?

• 3 J

• 6 J

• 9 J

• 18 J

Tags

TX.112.45.C.7.C.

A soccer ball of mass 0.5 kg is kicked and its velocity changes from 0 m/s to 10 m/s in 0.2 seconds. What is the impulse delivered to the ball?

• 2.5 N·s

• 5 N·s

• 10 N·s

• 20 N·s

Tags

TX.112.45.C.7.D.

A 1 kg cart moving at 2 m/s collides and sticks to a stationary 1 kg cart. What is their final velocity after the collision?

• 0 m/s

• 1 m/s

• 2 m/s

• 4 m/s

Tags

TX.112.45.C.7.E.

A pendulum swings back and forth. At which point is its potential energy the greatest?

• At the lowest point of its swing

• At the highest point of its swing

• At the midpoint between highest and lowest

• Potential energy is the same at all points

Tags

TX.112.45.C.8.A.

A student observes a simulation of two carts colliding elastically in one dimension. The first cart moves at 3 m/s toward a stationary second cart of equal mass. After the collision, the first cart stops and the second cart moves at 3 m/s. Which principle does this demonstrate?

• Conservation of energy only

• Conservation of momentum only

• Conservation of both momentum and kinetic energy

• Loss of momentum

Tags

TX.112.45.C.7.E.

A teacher demonstrates a slinky stretched out on a table. She creates a pulse by quickly moving one end up and down. The students observe the wave move along the slinky. How can students determine if this is a transverse or longitudinal wave, and what evidence should they use?

• By checking if the wave moves faster than sound; evidence: speed measurement

• By observing the direction of particle motion relative to wave direction; evidence: particles move perpendicular to wave direction for transverse, parallel for longitudinal

• By measuring the amplitude; evidence: higher amplitude means transverse

• By listening for sound; evidence: sound means longitudinal

Tags

TX.112.45.C.8.B.