Newton's Law of Motion Test review

Newton's First Law of Motion can best be defined by which statement.

• Force (N) equals the mass of an object times the acceleration of the object.
• For every action there is an equal and opposite reaction.
• A body at rest tends to remain at rest. A body in motion tends to remain in motion unless acted on by a separate force.
• Inertia, the first law is only about inertia nothing else but inertia.

Newton's Third Law of Motion is best defined by which statement?

• A body at rest tends to remain at rest.
• A body in motion tends to remain in motion unless acted on by another force.
• For every action there is an equal and opposite reaction.
• Inertia, it is all about inertia and speed and motion.

Newton's Second Law of Motion can be defined by using the following formula.

• Momentum = mv
• Force (N) = ma
• Speed = d/t
• Velocity = d/t with a direction

Balanced forces cause objects to

• move.
• remain in place.
• fall downward.
• rotate and spin in circles.

Unbalanced forces cause objects to

• remain still.
• remain motionless.
• move and accelerate.

Acceleration can be defined as an object

• velocity with a direction.
• distance in a given direction.
• speeding up, slowing down, changing velocity or changing direction.
• speed with direction.

A ball being dropped from a tower and falling towards the ground is acted on by these forces:

• balanced forces
• frictional forces
• friction and gravity forces
• may the force be with you

Newton's first law is also called the:

• law of inertia

• law of mass

• f = ma law

• law of forward momentum

What force causes downward acceleration?

• applied force

• normal force

• friction force

• gravity force

Tags

NGSS.MS-PS2-4

What is the answer for the acceleration of a bike rider with a mass of 50kg who pushes off with a force of 25 Newtons.

• 100 m/s²

• 2 m/s²

• 0.5 m/s²

• 0.125 m/s²

Tags

NGSS.MS-PS2-2