Energy Transformation Review

Which of the following is causing the wheel to turn?

• Force from the thermal energy generated by the solar radiation causes the wheel to turn.

• Force from the mechanical energy generated by the solar radiation causes the wheel to turn.

• Force from the thermal energy generated by the moving water causes the wheel to turn.

• Force from the mechanical energy generated by the moving water causes the wheel to turn.

Which of the following is the source of the energy that moves the cars around the track?

• chemical energy from the combusting fuel

• electrical energy from the turning wheels

• mechanical energy from the wind

• frictional energy from the tires

When an electric kettle is turned on, the temperature of the water is increased by which type of energy?

• wind energy

• thermal energy

• mechanical energy

• light energy

Which three forms of energy is the lamp using?

• heat, light, and sound

• mechanical, sound, and light

• electrical, light, and heat

• light, mechanical, and electrical

Based on the law of conservation of energy, energy CANNOT be

• created or destroyed.

• gained or destroyed.

• gained or lost.

• created or lost.

Lashonte was studying mechanical kinetic energy in science class. She noticed several possible examples in her environment. Which of the following is an example of mechanical kinetic energy?

• a lamp that is not plugged in

• a windmill with no wind

• an unused battery

• a garden hose with moving water

People use different forms of energy to meet their needs. Which form of energy is used when popcorn is popped in a microwave?

• light 

• nuclear 

• electromagnetic

• mechanical

Which two types of energy are being produced in the picture?

• electrical energy and light energy

• electrical energy and sound energy

• mechanical energy and light energy

• mechanical energy and sound energy

What number indicates the wavelength of the wave?

• 1

• 2

• 3

• 4

In which of the following substances does a beam of light travel the fastest?

• air 

• glass 

• water 

• plastic