Work Energy and Power

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

• 676 J

• 52 J

• 17J

• 338 J

Tags

NGSS.MS-PS3-1

What is the mass of a moving object that has 100 Joules of KE and moves at a velocity of 2 m/s?

• 50 kg

• 200 kg

• 25 kg

• 100 kg

Read the picture, then fill in the blank: The ability to work or cause change is _

Tags

NGSS.MS-PS3-5

Read the picture, then fill in the blank: The rate at which energy is transferred is called _.

Read the picture then fill in the blank: The person with the shovel has less power than a snowblower because it transfers the same amount of energy in _ time.

Energy and work are measured in...

• newtons

• joules

• hertz

• kilograms

The equation for WORK is

• work = power x mass

• work = power / time

• work = force x distance

• work = distance x time

Tags

NGSS.MS-PS3-5

_______________ is done when a force acts on an object and the object moves in the direction of the force.

• Work

• Kinetic energy

• Watt

• Joule

The property of an object or system that allows it to do work is ________________.

• Work

• Energy

• Power

• Distance

Tags

NGSS.MS-PS3-5

The ability to do work or cause change.

• power

• energy

• work

Tags

NGSS.MS-PS3-5