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Force - Final Review

Authored by Nancy Miller

Science

8th Grade

7 Questions

NGSS covered

Used 2+ times

Force - Final Review
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

1. Moving objects eventually come to a stop on Earth because of:

Gravity

Friction

Magnetism

Electricity

Tags

NGSS.MS-PS2-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes objects to move in certain directions?

Friction

Gravity

Unbalanced Force

Mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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If the same amount of force was applied to each of these cars, which one would accelerate faster and why?

The car that does not have the luggage on the roof will accelerate faster because it has less weight (mass) to move.

The car that has the luggage on the roof would accelerate faster because it has more weight (mass) to move.

Both cars would accelerate at the same rate.

Neither car would accelerate.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the purpose of a seat belt in a car or bus?

Applies a force in the opposite direction of the motion of the car to keep the person in their seat.

To make the seat more comfortable for the passenger.

To help the driver find the right speed.

To decorate the interior of the vehicle.

Tags

NGSS.MS-PS2-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Hockey is a sport in which players use hockey sticks to push a puck across smooth ice. At practice one day, two different-colored hockey pucks were sliding on the ice. The black and purple hockey pucks have the same mass. A player hit each hockey puck with a stick, but not from the same direction. Which puck experienced the stronger force when hit?

The black puck experienced stronger force.

The purple puck experienced stronger force.

Both experienced the same force because they were the same mass and changed speed by same amount.

Cannot be determined from the information given.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Which of the following ramps would be hardest to push the box up? Why?

Box with wheels being pushed up a Smooth Surface because the wheels would create the most friction with the smooth surface.

Box without wheels being pushed up a Smooth Surface because the surface would create the most friction with the bottom of the box.

Box with wheels being pushed up a Rough Surface because the wheels would create the most friction with the rough surface.

Box without wheels being pushed up a Rough Surface because the surface would create the most friction with the bottom of the box.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A car at the top of which hill, A or B, would have the most potential energy and why? (Refer to the diagram of the roller coaster with hills A and B.)

The roller coaster car would have the greater amount of potential energy at the top of hill A because it is higher than hill B and will therefore have more potential gravitational energy (potential energy based on height above the ground).

The roller coaster car would have the greater amount of potential energy at the top of hill B because it is lower than hill A and will therefore have more potential gravitational energy.

The roller coaster car would have the same amount of potential energy at the top of both hills because potential energy does not depend on height.

The roller coaster car would have more potential energy at the bottom of the hills because potential energy increases as the car moves downward.

Tags

NGSS.MS-PS3-2

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