Work, Energy and Power

Which formula is this?

 $?\ =\ \frac{1}{2}mv^2$  

 

• Potential Energy
  

• Kinetic Energy

• Mechanical Energy

• Work

Tags

NGSS.HS-PS3-1

Which formula is this?

 $?\ =\ F.d$  

 

• Potential Energy
  

• Kinetic Energy

• Mechanical Energy

• Work

Which formula is this?

 $?\ =\ mgh\ +\frac{1}{2}mv^2$  

 

• Potential Energy
  

• Kinetic Energy

• Mechanical Energy

• Work

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

__________ is the rate at which work is done

• Power

• Energy

• Force

• Time

Which situation is work not done?

• lifting a 20 pound box off the floor
• holding a 20 pound box above the floor
• sliding a 20 pound box across the floor
• sliding a 20 pound box up an inclined plane

What type of energy is in this picture?

• Kinetic Energy

• Elastic Potential Energy

• Chemical Potential Energy

• No energy here

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A battery converts what type of energy to another?

• sound to kinetic
• light to heat
• mechanical to electrical
• chemical to electrical

Tags

NGSS.HS-PS3-3

Energy that is stored in bonds between atoms is:

• Mechanical energy
• Chemical energy
• Kinetic energy
• Nuclear energy

Tags

NGSS.HS-PS1-4

The SI Unit for Energy is

• Joule

• Newton

• Calorie

• Watt

A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 

• 77 J
• 7.7 J 
• 0.7 J 
• 770 J 

Tags

NGSS.HS-PS3-2