Newton's Laws Examples

A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...

• Less than 1, 000 N

• 1,000 N

• More than 1,000 N

Tags

NGSS.MS-PS2-1

A rocket can fly into space because:

• when it is launched, the hot exhaust gases hit the ground and push the rocket forward.

• the rocket pushes the exhaust gases backward, and there is an equal and opposite reaction pushing the rocket forward.

• when the gases are burning up, the mass of the rocket decreases, changing the amount of gravity on the rocket.

Answer explanation

the rocket pushes the exhaust gases backward, and there is an equal and opposite reaction pushing the rocket forward.

Tags

NGSS.MS-PS2-1

When your hand pushes against a wall, the force that the wall exerts on your hand is

• Zero

• Less than the force of the hand pushing on the wall

• More than the force of the hand pushing on the wall

• The same as the force of the hand pushing on the wall

Answer explanation

Newton's Third Law; Every force interaction will have an equal, opposite force.

Tags

NGSS.MS-PS2-1

Which of Newton's Laws states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force?

• First Law

• Second Law

• Third Law

What states that an object in motion will stay in motion until something stops it. It also states that an object at rest will remain at rest until it is moved?

• velocity

• speed

• inertia

• relative motion

When a net force is applied to a system, the system will ______.

• agent

• be at rest

• go a constant velocity

• accelerate

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 3kg skateboard at 5m/s^2.

• 8N

• 1.6N

• 0.6N

• 15N

Tags

NGSS.MS-PS2-2

Rocky, age 5, and Parker, age 20, skip pebbles on the pond. The pebbles Parker throws go farther and faster than Rocky's.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Think about pushing a shopping cart and a car. If you apply the same amount of force to both, the shopping cart will travel fast, but the car will hardly move. To move the car yo would need a larger force. Which of Newton's laws is being represented?

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-2

Every action has an equal but opposite reaction.

• 1st law

• 2nd law

• 3rd law

Tags

NGSS.MS-PS2-1