Work and energy

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

What kind of energy is in a rock at the edge of a cliff?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-2

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

Tags

NGSS.MS-PS2-4

When work is done, there is always a(n) _______.

• constant rate

• single movement involved

• transfer of energy

Tags

NGSS.MS-PS3-4

In which of the following is no work done

• climbing stairs
• lifting a book
• pushing a shopping car
• none of the above

If you exert a force of 10.N to lift a box over 1 m how much work do you do.

• 11
• 10
• 5
• 20

energy of position

• potential energy
• kinetic energy

Tags

NGSS.MS-PS3-2

A ball rolling down the hill is an example of ___ energy.

• kinetic
• potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is mechanical energy?

• total kinetic energy

• the energy of motion

• total kinetic and potential energy

• temperature plus heat

Tags

NGSS.HS-PS3-2

Where is the kinetic energy of pendulum at its highest?

• at the top of the swing

• at the bottom of the swing

• at 1/4 of the swing

• at 3/4 of the swing

Tags

NGSS.HS-PS3-2