Power and work

___________ is done when force is applied to an object and the object moves in the same direction as the force

• power
• machine
• modified lever
• work

This is the SI unit for power.

• m/s2
• Joules
• watts
• F

This is the SI unit for work.

• Joules
• watts
• m/s2
• d/t

A___________ helps do work by changing the size of an input force, the direction of the force, or both.

• machine
• pulley
• ramp
• modified lever

The rate at which work is done or energy is transformed.

• kinetic energy
• potential energy
• power
• work

________________ states that energy cannot be destroyed or created.

• law of conservation of power
• law of Socrates
  law of Socrates
• law of conservation of energy
• Pythagoras Theory 

The energy that an object has because of the position, shape, or condition is____________.

• kinetic energy
• radiant energy
• potential energy
• Joules

Food and gasoline are examples of this form of energy.

• radiant energy
• thermal energy
• mechanical energy
• chemical potential energy

Calculate the KE of a moving 4 kilogram object traveling at a velocity of 3 m/s.

• 18 J
• 36 J
• 12 J
• 6 J

Tags

NGSS.MS-PS3-1

How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?

• 27 J
• 18 J
• 9 J
• 2 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4