Big Ideas 10 and 11 Energy and Energy Transformations

Front

What happens when light hits a shiny surface, like a mirror?

Back

The light is reflected.

Front

Why does a pencil appear to bend when it is partially in a glass of water?

Back

Light energy slows down when it travels from one material to another (air to water), and this shift in speed causes the pencil to appear to bend or break.

Front

____________ energy is energy produced by vibrations. Its waves must have a material to travel through. They can't move through a vacuum.

Back

Sound

Front

When you rub two objects together, heat energy is produced by _____________.

Back

friction

Front

When two objects are rubbed together, heat is created by _________________.

Back

friction

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed; it can only be transformed from one form to another.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or state.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.