Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion or position. It can be seen in moving objects like a bicycle or a flowing river.

Front

What is sound energy?

Back

Sound energy is the energy produced when an object vibrates, creating sound waves that travel through the air or other mediums.

Front

How do bats use sound energy?

Back

Bats use sound energy by emitting sounds that bounce off objects, allowing them to locate prey through the echoes.

Front

What type of energy do flowing water and turbines represent?

Back

Flowing water in dams represents mechanical energy, as it is used to spin turbines and generate electricity.

Front

What happens when an object vibrates?

Back

When an object vibrates, it creates sound waves that can be heard as sound.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy of moving particles within an object.

Front

What is an example of mechanical energy in a bicycle?

Back

An example of mechanical energy in a bicycle is the energy used when the pedals turn the wheels.

Front

What is the role of gears in a bicycle?

Back

Gears in a bicycle help to change the speed and torque of the bike, allowing for easier pedaling and better control.

Front

What is the difference between light energy and sound energy?

Back

Light energy is the energy that travels in waves and can be seen, while sound energy is produced by vibrations and travels through air or other mediums.

Front

What is an example of an object that does NOT use mechanical energy?

Back

A bicycle reflector does not use mechanical energy; it is used for visibility at night.