Chapter 12 Review

Front

What is the velocity of a 2.5 kg ball after a perfectly elastic collision with another 2.5 kg stationary ball if the first ball was moving at 5 m/s?

Back

5 m/s

Front

True or False: Each of the four universal forces is affected by the distance between the particles of matter.

Back

True

Front

What law states that for every action, there is an equal and opposite reaction?

Back

Newton's 3rd Law of Motion

Front

If a net force is acting on an object, what can we say about its velocity?

Back

Its velocity must be changing.

Front

In which direction does friction act in relation to the direction of an object's motion?

Back

Opposite

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma)

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly gravitational potential energy.