Friction

Movers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?

• friction
• gravity
• inertia
• magnetism

Tags

NGSS.MS-PS2-2

Only solids can produce friction

• true

• false

The motion of an object will change when an unbalanced force is applied to it

• true

• false

Tags

NGSS.MS-PS2-2

What is acceleration?

• transfer of energy to an object

• going faster

• a change in velocity (speed, direction, or both)

• an object remaining in motion or at rest until something changes it

Friction _____________ motion

• Works in the same direction as

• Opposes

• Has not effect on

• Pulls against

Tags

NGSS.MS-PS2-2

True or False: objects that are smooth have LESS friction than objects that are rough

• TRUE

• FALSE

Imagine you decide to jump out of an airplane 🛩

Which force is going to pull you down towards earth

• Fluid Friction

• Static Friction

• Gravity

• The wind from the airplane

Tags

NGSS.MS-PS2-4

Which of these materials do you predict would have the MOST amount of friction

• Metal

• Tile

• Sand Paper

• Denim

Tags

NGSS.2-PS1-1

NGSS.2-PS1-2

TRUE or FALSE if you push a box across a surface like rough wood with a lot friction, it will NEVER stop

• TRUE, as long as it doesn't run into something it will keep going and going and going

• FALSE, it will stop very quickly

Tags

NGSS.MS-PS2-2

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west