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1.3 Friction & 1.4 Gravity (Final)

Authored by Mohamed M.Elhassan

Physics, Science

6th - 8th Grade

Used 19+ times

1.3 Friction & 1.4 Gravity (Final)
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How can friction be reduced?

reduce the force acting between the 2 surfaces

reduce the roughness of the 2 surfaces coming in contact

use wax, grease or oil

all of the above are ways of reducing friction

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

A pencil falls off of a desk. What moves the pencil toward the floor? 

mass
friction
gravity
speed

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Which model has greater gravitational attraction (if any)

Both Model A and Model B (same gravity)

Model B

Model A

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

People often try and reduce friction by ....................the bottoms of their skis to reduce friction and make them go faster.

waxing

lubricating

using ball-bearings at

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of material would cause the greatest amount of friction?

sheets of wax paper

smooth kitchen tile

shiny wood table top

coarse sandpaper

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a person steps in water spilled on the ground, and slips; they are slipping because there is too little of what force?

friction

motion

lifting

gravity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

As mass increases, what happens to gravitational force?

increases
decreases
stays the same
i don't know

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