8th Grade ✔ point Review

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What force allows a basketball player to move upward when jumping?

Back

The reaction force exerted by the ground.

Front

What does a horizontal line on a distance-time graph indicate?

Back

The object is at rest.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate or change its motion.

Front

How do you calculate acceleration?

Back

Acceleration = Net Force / Mass.

Front

What is the formula for calculating net force?

Back

Net Force = Mass x Acceleration.

Front

What is the balanced equation for the reaction of NaOH with H3PO4?

Back

NaOH + H3PO4 → NaH2PO4 + H2O.

Front

How many grams of water are produced when 30 grams of NaOH reacts with 48 grams of H3PO4?

Back

69 grams of water are produced.

Front

What does a steep slope on a distance-time graph represent?

Back

The object is moving at a high speed.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.