Energy Work and Power Practice

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

Tags

NGSS.HS-PS3-1

The SI unit of work is?

• Joules
• Watts
• Newtons
• meters

The energy of movement is...? 

• Kinetic
• Potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

Tags

NGSS.MS-PS2-4

What is the formula for calculating the total amount of mechanical energy?

• ME = KE + PE
• KE = ME + PE
• PE = KE + ME
• ME = 1/2 mv²

Tags

NGSS.MS-PS3-1

Why does the total amount of mechanical energy stay constant in a system?

• energy is not created or destroyed
• energy leaves
• energy enters
• energy is not converted from one form into another

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

________________ is the rate at which work is done.

• Power

• Work

• Time

• Energy

Energy can be transformed from one form into another, but the total amount of energy never changes.

• Work-energy theorem

• Law of conservation of energy

• Newton's second law of motion

• King's theorem of energy

Tags

NGSS.MS-PS3-5

What is the kinetic energy of an 9 kg bowling ball rolling at 3.30 m/s?

• 29.7 J

• 323.4 J

• 49.005 J

• 14.85 J

Tags

NGSS.MS-PS3-1