Conservation of Energy Quiz

What does the principle of conservation of energy state about a closed system?

• Energy can be created or destroyed.

• Total energy remains constant.

• Energy is always decreasing.

• Energy is always increasing.

When a ball is at its highest point before falling, what type of energy is at its maximum?

• Kinetic energy

• Thermal energy

• Gravitational potential energy

• Sound energy

As a ball falls, what happens to its gravitational potential energy?

• It decreases and converts to kinetic energy.

• It remains constant.

• It disappears completely.

• It increases.

Why doesn't a ball bounce back to the same height indefinitely?

• Because energy is lost to the surroundings.

• Because the ground absorbs all energy.

• Because the ball is too heavy.

• Because the ball gains energy.

What form of energy is produced when a ball hits the ground and makes a sound?

• Kinetic energy

• Potential energy

• Sound energy

• Magnetic energy

Which of the following is NOT a mechanism of energy loss for a bouncing ball?

• Sound production

• Magnetic field

• Air resistance

• Thermal energy

How can you keep a ball bouncing at the same height?

• By using a heavier ball

• By adding energy back into the system

• By reducing its weight

• By removing air resistance

What happens to your body's energy when you dribble a basketball?

• It turns into sound energy.

• It remains in your body.

• It is transferred to the ball-earth system.

• It is lost completely.

Which of the following is an example of energy conservation in electric circuits?

• Calculating the height of a building

• Measuring the speed of a car

• Determining the weight of an object

• Predicting the brightness of a bulb

The principle of conservation of energy applies to which of the following?

• Only thermal energy

• Only kinetic energy

• Only gravitational energy

• All forms of energy