Friction as a Force

Friction acts in a direction ----------- to the motion of the moving object.

• in line

• opposite

• parallel

• adjacent

Friction Force is a

• non contact force

• contact force

• magnetic force

Rough surfaces have ------------ Friction .

• less

• more

• rigid

• light

----------- is applied to the moving parts of a vehicle to reduce friction.

• water

• grease

• powder

Tags

NGSS.MS-PS2-2

In the diagram below, a girl sits on a sled and slides down a hill of snow. The arrow that represents the force of friction opposing the motion of the sled down the hill is (a)   .

• Arrow A

• Arrow B

• Arrow C

• Arrow D

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A force that resists motion when two surfaces are touching each other

• force

• friction

• motion

• air resistance

Tags

NGSS.3-PS2-1

Antoina wanted to see how far she could slide a hockey puck 

across different surfaces. She chose to slide the puck across a sidewalk, 

an asphalt road, and the tiled kitchen floor in her house.

Antonia designed this experiment to observe which of the following forces?

• gravity

• friction

• magnetism

• electricity

Tags

NGSS.MS-PS2-2

Why is it harder for the boy in Image B to get down the hill?

• Motion

• Friction

• Work

• Displacement

Which of the following surfaces has the least amount of friction?

• a gravel driveway

• a dirt road

• an ice covered road

• a road covered in sand

A force that resists the movement of one surface past another surface.

• Acceleration

• Gravity

• Friction

• Lubricant