Energy & Work

3. What is the energy in motion?

• a. Chemical Energy

• b. Kinetic Energy

• c. Light Energy

• d. Potential Energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

4. What is the energy at rest?

• a. Chemical Energy

• b. Kinetic Energy

• c. Mechanical Energy

• d. Potential Energy

Tags

NGSS.MS-PS3-2

5. What is the formula for Kinetic Energy?

• a. KE= ma

• b. KE= 1/2 mv2

• c. KE= mgh

• d. KE= Fd

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

6. What is the formula for potential energy?

• a. PE= ma

• b. PE= 1/2 mv2

• c. PE= mgh

• d. PE= Fd

10. When is work done?

• a. When the force applied to an object and its motion are of the same direction

• b. When the force applied to an object and its motion are not of the same direction

• c. When force is applied to an object and it stayed at rest.

• d. When there is no force applied to an object yet it moves.

What is the work done by the man?

• 0 J
• 65 J
• 6500 J
• 0.0065 J

In which of the following situations do your arms do work on books?

• holding a heavy stack of books while standing
• carrying a heavy stack of books
• dropping a stack of books onto a table
• picking up a pile of books from the floor

Which of followings states work equation? 

• Work = Force x Distance
• Work = Force x Acceleration 
• Work = Distance x Momentum
• Work = Newton x Acceleration 

Tags

NGSS.MS-PS3-5

You are standing on a floor. If your weight is 500 N, what is your work? 

• 500 N
• 250 J
• 50 J
• 0 J 

Which of followings is true about the law of conservation of energy?

• Energy cannot be created, destroyed or converted. 
• Energy can only be created. 
• Energy can only be destroyed.
• Energy can only be converted.