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Force and Motion Amplify

Authored by Charles Martinez

Physics

8th Grade

NGSS covered

Force and Motion Amplify
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Sandra pushed a wooden block and it slid across the floor. The wooden block gradually slowed down and stopped after moving 10 meters. Why did the block stop moving?

The floor exerted a force that is opposite to the direction of the block’s motion.

The block ran out of force.

The floor absorbs force from the block.

All objects stop moving because their natural state is to be still

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In order to change the velocity of an object, you must exert....

speed

friction

mass

a force

Tags

NGSS.MS-PS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: A stronger force can cause _________ change in velocity.

a smaller

a weaker

a greater

no

Tags

NGSS.MS-PS2-2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

If object B is moving to the right at 2 cm/sec and object A is moving the to the left at 2 cm/sec, they have the same velocity.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The velocity of an object means...

how fast the object is moving

the amount of push/pull on an object

the object's speed in a particular direction

Tags

NGSS.MS-PS3-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Friction is a force between

two moving objects

an object and the surface it is moving over

a teenager and their parents

one moving and one stationary object

Tags

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

According to our work so far in science force means...

a push or a pull that can change the motion of an object

the speed and direction of an object's motion

a deep jedi secret known only to Yoda

to reach a conclusion using evidence and reasoning

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

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