Quarter 2 Exam Review

Front

What evidence supports the idea that South America and Africa were once joined?

Back

The observation that South America and Africa fit together like puzzle pieces suggests they were joined in the past and have moved apart since.

Front

What is Newton's 2nd Law of Motion?

Back

Force is equal to the mass of an object times its acceleration (F = ma).

Front

What causes a balloon to fly away when air is released?

Back

The balloon's movement is the reaction to the force of air escaping.

Front

How can electricity and magnetism be related?

Back

Electricity can be used to create a magnet.

Front

What is the most commonly accepted theory on the origin of our universe?

Back

The Big Bang Theory.

Front

What is the definition of tectonic plates?

Back

Tectonic plates are large sections of the Earth's crust that move and interact with each other.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is an example of a chemical change?

Back

Rust forming on iron is an example of a chemical change.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.