Fall Physical Science Review

Front

What is the main difference between liquids and gases?

Back

Liquids change shape, but keep volume. Gases change both shape and volume.

Front

What is the maximum speed an object will reach when falling through a substance, such as air?

Back

Terminal velocity.

Front

In the action-reaction pair of forces, what is the reaction force when a player hits a ball with a bat?

Back

The force of the ball against the bat.

Front

What type of bond forms CaF2?

Back

Ionic bond.

Front

What did Ernest Rutherford discover about atoms?

Back

Atoms were mostly empty space.

Front

Define terminal velocity.

Back

The maximum speed an object reaches when falling through a fluid, where the force of gravity is balanced by the drag force of the fluid.

Front

What is air resistance?

Back

A force that opposes the motion of an object through air.

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 ionic bond?

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the principle of conservation of energy?

Back

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