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.

Students conducted an investigation in which they rolled a soda can down a ramp that was 30 cm high and one that was 40 cm high. Which question were the students most likely trying to answer?

How does ramp height affect the distance a soda can rolls?

How does mass of a soda can affect the distance it will roll?

How does surface friction affect the distance a soda can will roll?

How does the size of a soda can affect the distance it rolls?

Students create balloon rockets by taping drinking straws to balloons and running a thick string through the straw. The ends of the string are held tightly apart. When the balloon is inflated and released, it moves along the string. What should the student do to change the amount of friction that slows the motion of the balloon rocket?

Replace the string with thin wire.

Hold the string ends closer together.

After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock. What does this demonstrate?

Electrical forces can act at a distance.

Frictional forces require direct contact.

Electrical forces require direct contact

Frictional forces can act a distance.

Which sentence below describes a contact force?

A leaf floats in the air and falls to the ground.

A magnetic force pulls a paper clip toward a magnet

A 10 kg, 15 kg, and 20 kg rock are rolling down a hill. Which rock will require the most force to stop?

All 3 rocks will require the same force

Everyday Forces

Quiz

•

Science

•

7th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-PS2-2, MS-PS2-4, MS-PS2-5

+3

Standards-aligned

Charles Martinez

FREE Resource

21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What force holds the planets in motion around the sun?

Magnetic

Electrical

Gravitational

Air Resistance

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

All objects in the universe have a gravitational attraction to each other.

True

False

Tags

NGSS.MS-PS2-4

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What force brings the pencil down?

Applied

Magnetic

Normal

Gravitational

Tags

NGSS.MS-PS2-4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What force ultimately slows the roller coaster to a stop?

Applied

Normal

Friction

Magnetic

Tags

NGSS.MS-PS2-5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An _______ force must act on an object for it to CHANGE it's motion

balanced

unbalanced

gravitational

electrical

Tags

NGSS.MS-PS2-2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is defined as a push or pull?

force

motion

vector

speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

This type of force resist motion between two surfaces that are pressed together

contact

gravity

friction

electromagnetic

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Everyday Forces

21 questions

What force holds the planets in motion around the sun?

All objects in the universe have a gravitational attraction to each other.

What force brings the pencil down?

What force ultimately slows the roller coaster to a stop?

An _______ force must act on an object for it to CHANGE it's motion

What is defined as a push or pull?

This type of force resist motion between two surfaces that are pressed together

If all the acting forces is equal to zero, the forces acting on the object are

The unit of force is

What is the net force?

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