Year 8 Science - Energy

Front

What is energy transformation?

Back

a change of energy from one form to another

Front

Any object that rises and falls experiences a change in: gravitational potential energy & kinetic energy, release of energy, size, color

Back

gravitational potential energy & kinetic energy

Front

Whenever a moving object experiences friction, some of its kinetic energy is turned to...

Back

thermal energy

Front

Through the process of photosynthesis which takes place in plants, solar energy from the sun is changed to stored ______ energy.

Back

chemical

Front

According to the Law of Conservation of Energy...

Back

energy cannot be created or destroyed

Front

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly? Options: Chemical to light, Electrical to chemical, Electrical to light, Chemical to electrical

Back

Electrical to light

Front

What energy transformations take place when a battery-operated radio is in use?

Back

Chemical to electrical to sound

Front

Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp? Options: radiant, light, heat, chemical

Back

chemical

Front

In energy transformations, "wasted energy" usually takes what form?

Back

heat

Front

On a roller coaster, where is maximum kinetic energy? Options: At the bottom of a big hill, When going around a corner, When going upside down, At the top of a big hill

Back

At the bottom of a big hill