Matter, Force, Friction

On which surface would a toy car travel the furthest when pushed?

• ice
• carpet
• snow
• sand

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

When we pour sand on an icy road, what force are we increasing to help cars stay on the road?

• electricity
• magnetism
• friction
• gravity

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed
• friction has no affect on speed

Match the following Types of Friction to their descriptions

• Static Friction

• 
• Fluid Friction

• 
• Sliding Friction

• 
• Rolling Friction

• 

Tags

NGSS.MS-PS2-2

What are 2 factors that determine the amount of friction between 2 objects?

• Force and roughness between surfaces
• The color and brightness of the objects

• How smelly or not smelly the objects are

• Whether Grogu is using his levitation powers or not... May the Force be with you, always!

Rough surfaces have _________ compared to smoother surfaces.

• greater friction

• less friction

• the same level of friction

• no friction

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

• Motion
• Friction
• Work
• Displacement

Which would NOT be a way of reducing friction?

• making the surfaces smoother
• using lubricants such as waxes, oils, or grease
• changing from sliding friction to rolling friction using ball bearings
• Using kitty litter on snow and ice to help your car gain traction

Tags

NGSS.MS-ETS1-2

Why is it important for basketball players to wear shoes with tread when playing?

• to increase the speed of the player

• to decrease the force between the player and the floor

• to decrease the amount of force needed for the player to move

• to increase friction between the floor and the player’s feet

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

• similar
• opposite
• parallel
• upward

Tags

NGSS.HS-PS2-1