Comparing Potential Energy

Front

What happens to the elastic potential energy of the rubber band as it launches the stone?

Back

The elastic potential energy is stored in the stone as it flies through the air.

Answer explanation

As Liam releases the rubber band, the elastic potential energy is converted into kinetic energy, propelling the stone forward. Thus, the correct choice is that the elastic potential energy is converted into kinetic energy as the rubber band snaps.

Front

A student winds up the rubber band in a toy airplane and releases it. The airplane propeller spins rapidly, causing the airplane to fly across the room. What happens to the elastic potential energy?

Back

The elastic potential energy is converted into kinetic energy to make the airplane move forward.

Answer explanation

When the rubber band is released, its stored elastic potential energy is converted into kinetic energy, causing the airplane to move forward rapidly. This explains why the correct choice is that the energy is converted into kinetic energy.

Front

A car burns gasoline to move. As the car moves on the highway, it speeds up and releases exhaust gases.

Back

Chemical potential energy in gasoline is converted into kinetic energy, making the car move

Answer explanation

The correct choice explains that chemical potential energy in gasoline is converted into kinetic energy, which powers the car's movement. This process allows the car to accelerate and release exhaust gases.

Front

In a hydroelectric dam, when water flows down and turns turbines, it generates electricity through the conversion of gravitational potential energy to which other type?

Back

Kinetic energy

Answer explanation

In a hydroelectric dam, water at height has gravitational potential energy. As it flows down, this energy converts to kinetic energy, which is used to turn turbines and generate electricity. Thus, the correct conversion is gravitational potential to kinetic.