Dec 2024 5th grade Study Guide

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Forces that are not equal and opposite, causing a change in motion.

Front

What type of energy transformation occurs when a wind-up toy is released?

Back

Elastic → Mechanical → Sound.

Front

What happens to light when it enters a prism?

Back

The light ray bends as it enters the prism.

Front

Why does a straw appear broken in a glass of water?

Back

The light waves are refracted as they change speed when they pass from the water to the air.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is the definition of energy?

Back

The ability to do work or cause change.

Front

What is mechanical energy?

Back

The sum of potential and kinetic energy in an object.

Front

What is sound energy?

Back

Energy produced by vibrating sound waves.