Friction

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

Which type of friction keeps objects from sliding around all over the place

• Static Friction

• Rolling Friction

• Fluid Friction

• Sliding Friction

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

When you jump out of a plane to go skydiving 🪂 you thankfully have a parachute so you can safely land 🛫. Which answer choice explains why the parachute helps you land safely

• While gravity pulls you down very quickly, Air Resistance (fluid friction) pushes back against gravity and your parachute, slowing you down

• While gravity pushes you down very slowly, Air Resistance (fluid friction) pulls back against gravity and your parachute, which means you can land safely

• When you have a parachute gravity is not able to pull you down as fast as it normally can

• The parachute will get caught on something on your way down which will save your life

Tags

NGSS.MS-PS2-2

When you go down a slide which two forces are competing in a tug of war?

• Gravity and Sliding Friction

• Gravity and Rolling Friction

• Gravity and Your Friend Pushing You

• Gravity and Pushing Friction

Tags

NGSS.MS-PS2-4

If you are unable to make it to the bottom of the slide, who won the tug of war between sliding friction and gravity?

• There is no winner, and your sad because you're stuck on a slide

• Gravity won

• Neither, its a tie

• Sliding friction won

Tags

NGSS.MS-PS2-2

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 Ice with no 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

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