How do balanced forces affect an object's motion?

The motion of an object will not change if the forces pushing or pulling the object are balanced.

The motion of an object will change if the forces pushing or pulling the object are balanced.

A balanced force acting on a moving object could make the object change direction, change speed, or stop moving.

It is unable to be determined by science at this time.

Two dogs, Buster and Bingo, are fighting over a rope toy. Buster is pulling with 20 N to the left and Bingo is pulling with 50 N to the right. What is the net force and in which dog's direction

30 N in Bingo's direction (right)

30 N in Buster's direction (left)

70 N in Bingo's direction (right)

70 N in Buster's direction (left)

An uncle plays tug-of-war with his niece and nephew. The uncle pulls one side of the rope with a force of 95 N. The niece and nephew pull the other side of the rope with a force of 40 N and 45 N. Which way and with how much net force will they move?

Toward the niece & nephew with 10 N

Toward the nice and nephew with 85 N

A sled dog in the Iditarod race has to take a timeout for an injury and is taken to a vet (so is not pulling the sled). How might the musher apply Newton's Second Law to keep the team going at the same acceleration with one dog off the team?

Remove some weight (mass) from the sled

Remove another dog from the team.

Move one dog behind the sled to push

In the equation F = m * a, "F" stands for -?-, "m" stands for -?- and "a" stands for -?-.

friction, molecules, acceleration

Two astronauts are playing catch in space. The first astronaut throws the ball and

the ball moves, and so does the astronaut, but in the opposite direction.

the ball moves, but the astronaut doesn’t.

the ball doesn’t move, but the astronaut moves backwards.

the ball doesn’t move, and neither does the astronaut.

A train rolls to a stop along a horizontal track without the conductor applying the brakes. What answer choice BEST explains why this occurred?

The opposing force of friction stopped the train.

The natural state of the train is not to be in motion.

The force of gravity slowed the train until it stopped.

According to Newton's first law of motion an object at rest will

have an equal and opposite reaction.

Newton's Laws of Motion

Quiz

•

Science

•

6th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS2-2, MS-PS2-1, MS-PS2-5

+2

Standards-aligned

Charles Harvey

Used 1+ times

FREE Resource

35 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Objects in motion will tend to stay in motion and objects at rest tend to stay at rest.

Newton’s 1st Law

Newton’s 2nd Law

Newton’s 3rd Law

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The force applied to an object is equal to its mass times the acceleration

Newton’s 1st Law

Newton’s 2nd Law

Newton’s 3rd Law

Force is measured in

pounds

Strongness

Newtons

FLOCCINAUCINIHILIPILIFICATION

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we have to wear seatbelts?

Inertia

Gravity

Force

acceleration

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is force?

A push or pull upon an object

a resistance to a force

a reaction to a push or pull

6.

FILL IN THE BLANK QUESTION

30 sec • 4 pts

A -?- is a push or pull

At the MOMENT OF THE HIT, what is happening with the forces?

They are equal and opposite

The bat is exerting more force on the ball

The ball is exerting more force on the bat

There is no force

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Newton's Laws of Motion

35 questions

Objects in motion will tend to stay in motion and objects at rest tend to stay at rest.

The force applied to an object is equal to its mass times the acceleration

Force is measured in

Why do we have to wear seatbelts?

What is force?

A -?- is a push or pull

At the MOMENT OF THE HIT, what is happening with the forces?

Forces act

An arrow modeling 100 N of force would be -?- as long as an arrow showing 50 N of force.

Forces always have

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