Force, Work, and Power

As the sun went down, the house became dark and Kyle turned on the lights. Which statement is true about power?

• The power of the light Kyle turned on is used to exert force.

• The power of the light Kyle turned on is the amount of energy transferred per time.

• The power of the light Kyle turned on can be calculated using force and distance.

Tags

NGSS.MS-PS3-5

The ability to do work or cause change

• motion

• energy

• force

• power

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-1

NGSS.MS-PS3-2

The formula for power is

• Power = Force x time/work

• Power = Force x distance/time

• Power = Work x time

• Power = Work x distance

How much force is needed to hold an apple with a mass of 0.1 kg?

• 0.98 N

• 98 N

• 0.098 N

• 9.8 N

Tags

NGSS.MS-PS2-2

Force is measured in which unit?

• Watt

• Kilogram

• Joule

• Newton

Power is measured in which unit?

• Newton

• Joule

• Pound

• Watt

Work is measured in which unit?

• Kilogram

• Joule

• Newton

• Watt

What formula is used to calculate force?

• F=md

• F=ma

• F=mg

• F=mt

Tags

NGSS.HS-PS2-1

What formula is used to calculate work?

• W=F/d

• W=Fd

• W=F + d

• W=F-d

Tags

NGSS.MS-PS3-5

What formula is used to calculate power?

• P=Ft

• P=F/t

• P=Wt

• P=W/t