Which could be an example of an unbalanced force?

A baseball that has been thrown to home plate.

A plate sitting on a dining table

A ball at the top of a hill that is not moving

Who wins the tug of war with what net force?

The person on the left with 20 N

The person on the left with 80 N

The people on the right with 20 N

The people on the right with 100 N

How do you know if this object is balanced?

It is balanced because its Net Force is 0 N.

It's not balanced; it's Net Force is 14 N

It's not balanced; it's Net Force is 10 N left and 4 N up.

You are pushing a wheelbarrow. What happens to the wheelbarrow's motion if more mass is added and you push with the same force?

The motion will remain the same

The motion will change directions.

Without air resistance, a bowling ball and feathers will fall:

they will both fall much slower

a non-contact force force that pulls some metals towards a magnet

a non-contact force force that pulls all metals towards a magnet

a contact force force that pulls some metals towards a magnet

a contact force that pulls all metals towards a magent

What happens when two north poles of a magnet are placed together?

the strength of the magnet is doubled

If a student has two magnets, how might it be determined which magnet is stronger?

Count how many paper clips each magnet can lift.

Submerge each magnet in a bowl of water.

Examine each magnet to determine the north pole.

Measure the length and the mass of both magnets.

Jupiter has about 317 times more mass than Earth. What can you infer from this fact?

That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.

That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.

That Jupiter’s and Earth’s gravitational forces are equal.

Mass has no effect on the gravitational force between two objects

Students conducted an investigation in which they let the same car roll down the same ramp in three different locations in their school with three different floor types, as shown in the picture. Which of the following questions was this investigation most likely designed to answer?

How does friction affect the distance a toy car rolls?

How does the mass of the toy car affect its speed?

How does the mass of the toy car affect the distance it travels?

Why does gravity make a toy car roll down a ramp?

7 Forces

Authored by Rosemary Bellamy

Science

7th Grade

NGSS covered

Used 110+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A force is:

a push

a pull

a twist

all the examples above

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A force:

cannot be measured, causes something to move, stop moving or change direction.

can be measured, causes something to move, stop moving or change direction.

can be measured, can only act in contact with an object

cannot be measured, can act in contact or at a distance.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does this measure?

Force

Weight

Mass

Newtons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the units in which we measure force?

Einsteins

Newtons

Kilograms

Metres

MULTIPLE CHOICE QUESTION

1 min • 1 pt

This is an example of what force?

Pull

Push

Twist

Gravity

MULTIPLE CHOICE QUESTION

1 min • 1 pt

This is an example of what force?

Pull

Push

Twist

Magnetism

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balanced forces do not change the objects speed or

direction

distance

time

mass

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7 Forces

A force is:

A force:

What does this measure?

What is the name of the units in which we measure force?

This is an example of what force?

This is an example of what force?

Balanced forces do not change the objects speed or

If an object is stationary (not moving) the forces acting upon it are _____________

If these teams are pulling with the same amount of force what will happen?

Which one is balanced?

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