Newton's 1st Law of Motion Passage

What is the definition of a force according to the passage?

• A push or a pull

• A measure of inertia

• A type of friction

• A stationary object

According to Newton's First Law of Motion, what happens to a body at rest if no unbalanced force acts on it?

• It stays at rest

• It starts moving

• It accelerates

• It changes direction

What is required to change the motion of an object already in motion?

• An unbalanced force

• Balanced forces

• Inertia

• Gravity

Tags

NGSS.MS-PS2-2

What is the role of friction when moving a piano across a stage?

• It stops the piano

• It accelerates the piano

• It has no effect

• It balances the forces

Tags

NGSS.MS-PS2-2

What happens to a tennis ball when balanced forces act on it?

• It remains stationary

• It moves upward

• It accelerates

• It changes direction