5.6A MELTS (STAAR Release Questions)

Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion or position. It is the sum of kinetic energy (energy of motion) and potential energy (stored energy).

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves. It is a form of mechanical energy that travels through air, water, or solids.

Front

What is light energy?

Back

Light energy is a form of electromagnetic radiation that is visible to the human eye. It is produced by the movement of photons.

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 the rider to pedal more efficiently.

Front

What is the purpose of a reflector on a bicycle?

Back

A reflector on a bicycle is used to enhance visibility at night, helping to keep the rider safe.

Front

How does thermal energy affect evaporation?

Back

Thermal energy increases the temperature of water, causing the molecules to move faster and eventually escape into the air as vapor, leading to evaporation.

Front

What is the difference between mechanical energy and thermal energy?

Back

Mechanical energy is related to the motion and position of an object, while thermal energy is related to the temperature and kinetic energy of particles in a substance.

Front

What is an example of an object that uses mechanical energy?

Back

A bicycle uses mechanical energy when the rider pedals to move it forward.

Front

What is an example of sound energy in nature?

Back

A bat uses sound energy to locate prey by emitting sounds and listening to the echoes.