XL Unit 7 Science Review

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface, such as a mirror.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, changing its speed.

Front

What is absorption in terms of light?

Back

Absorption is when light is taken in by a surface, rather than being reflected or transmitted.

Front

What is solar energy?

Back

Solar energy is a type of radiant energy that comes from the sun.

Front

What is diffraction?

Back

Diffraction is the spreading out of waves when they pass through a narrow opening or around obstacles.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at a steep angle and reflects completely back into the medium.

Front

What happens to light when it hits a dark surface?

Back

When light hits a dark surface, it is mostly absorbed.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the difference between thermal energy and solar energy?

Back

Thermal energy is the energy of heat, while solar energy is the energy from the sun.