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Mechanics

Authored by Charles Martinez

Physics

12th Grade

NGSS covered

Mechanics
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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Centripetal acceleration always points

in the direction of the object's motion
in the opposite direction of the object's motion
towards the center of the circle
towards the outside of the circle

Tags

NGSS.HS-ESS1-4

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The velocity is always _____ to the line of a circle. 

outwards
towards the center
tangent
faster

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The units of tangential (linear) velocity are

m s-1
rad s-1

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

the inside horse
the outside horse
Neither

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following has the greatest momentum?

a scurrying cockroach

a parked semi-truck

more information is needed

Tags

NGSS.HS-PS2-2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Most modern vehicles have padded dashboards. This reduces collision injuries by...

reducing the driver's change in momentum
increasing the driver's change in momentum
increasing the force of impact
increasing the time of impact

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When an object spins it is said to undergo ______________. 

rotational motion
angular momentum
axis differentiation
rotational axis

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