According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backwards because -

for the force that sent the person forward, there is an equal force pushing back on the skateboard.

the mass of the skateboard is the same as the mass of the person jumping off.

the pull of gravity on the person is the same as on the skateboard, regardless of size.

the air resistance on the person is great and the friction on the skateboard is small.

The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?

As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.

The rocket is protected from the heat of the exhaust.

Burned fuel can be collected on the ground.

This allows the rocket to be steered properly.

The head of a hammer is often made of steel. This makes the head heavy,which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist what force?

The force of the nail pushing in the opposite direction

The force of the air resistance on the moving hammer

The force of the person using the hammer

The force of gravity pulling down on the hammer

The illustration shows all the forces in Newtons (N) acting on a box.In what direction will the box move and how much NET FORCE moved the box?

to the right with a strength of 11 N

to the left with a strength of 7 N

to the right with a strength of 25 N

to the left with a strength of 6 N

Which of the following changes to the setup would result in a larger force reading on the spring scale?

Attaching a larger spring scale

In order to vary the amount of force acting on the rocket, which of the following should the students change in each trial?

The amount of air pumped into the rocket

The length of the hose attached to the pump

The distance traveled by the rocket

The height of the rocket from fins to cone

A baseball bat hits a baseball with a force of 100 Newtons. What is the force and direction exerted by the ball on the bat?

100 Newtons, opposite direction

200 Newtons, opposite direction

There is a 100g rock and a 150g rock. You want to push them both 10m. Which one will require more force? Why?

The 150g rock because it is heavier

The 100 g rocker because it is lighter

which law of motion is demonstrated by a ball rolling to a wall and then stopping?

none of this apply to the situation

Newton's Three Laws

Authored by Jennifer Meyer

Science

7th Grade

NGSS covered

Used 458+ times

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22 questions

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

1st

2nd

3rd

Tags

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Force = Mass x Acceleration

Newton's 1st Law

Newton's 2nd Law

Newton's 3rd Law

Newton's 4th Law

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

Newton's 1st Law

Newton's 2nd Law

Newton's 3rd Law

Newton's 4th Law

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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

inertia

force

acceleration

velocity

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Any push or pull on an object.

force

velocity

inertia

momentum

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When all the forces on an object are equal and opposite, & the net force is zero, that's...

balanced forces

unbalanced forces

terminal velocity

reaction forces

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The illustration shows the forces in Newtons (N) acting on three different blocks. Which boxes will move under these conditions?

Blocks 1 and 2

Blocks 2 and 3

Blocks 1 and 3

Blocks 1, 2 and 3

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

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Newton's Three Laws

Force = Mass x Acceleration

"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

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

Any push or pull on an object.

When all the forces on an object are equal and opposite, & the net force is zero, that's...

The illustration shows the forces in Newtons (N) acting on three different blocks. Which boxes will move under these conditions?

According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backwards because -

The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?

Newton's third law describes action and reaction forces. A table of four scenarios is provided. Which of the scenarios described in the table show equal and opposite reaction forces?

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