Contact Forces Wrap-Up

The name for this type of diagram is...

• free body diagram

• box diagram

• free box diagram

• stem and leaf diagram

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

Tags

NGSS.MS-PS2-2

A baseball held by a pitcher has _____________energy.

• Kinetic
• Chemical 
• Potential
• Thermal

Tags

NGSS.MS-PS3-2

What is the unit to MEASURE force?

• Kilogram

• Meter

• Pounds

• Newton

What is the net force?

• 10 N
• 0 N
• 25 N
• 1 N

Tags

NGSS.MS-PS2-2

Explain what happens to the potential energy of a rock as it falls off the side of a cliff.

• The kinetic energy decreases as the potential energy increases.
• The kinetic energy decreases as the potential energy decreases.
• The potential energy decreases as the kinetic energy increases.
• The potential energy decreases as the kinetic energy decreases. 

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When an object is moving, friction acts in the _______ direction as the motion.

• perpendicular

• same

• opposite

• precise

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-1

A contact force is from

• objects physically touching

• far apart objects

• not touching object

• always a pull