Force and Friction

Balanced or Unbalanced?

• Balanced 

• Unbalanced

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If an object is not moving the forces acting upon it are _____________

• unbalanced

• weak

• balanced

• Hulk Smash!

How does friction affect speed?

• more friction decreases speed

• more friction increases speed

• less friction decreases speed

• less friction doesn't affect speed

Tags

NGSS.MS-PS3-1

What does friction produce?

• light

• sound

• heat

• gravity

Tags

NGSS.4-PS3-2

What is the net force?

• 10 N Right

• 0 N

• 25 N Right

• 10 N Left

Tags

NGSS.MS-PS2-2

Forces that have a net force of zero and the object's movement is not effected.

• Balanced Forces 

• Unbalanced Forces 

Tags

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Friction is a force that acts in a(n) ___________ direction relative to a moving object.

• similar

• opposite

• parallel

• perpendicular

How do you lower the friction force?

• By a smooth surface

• By a rough surface

• By not pushing hard

• By pushing down

What type of force helps slow down a moving car?

• normal force

• gravitational force

• electrical force

• frictional force

Tags

NGSS.MS-PS2-2

The force that acts in the opposite direction of motion when two surfaces come in contact. 

• Force

• Friction

• Static

• Kinetic