Work and energy

What is a force?

• a push or a pull
• a force that slows or stops an object in motion

What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

Tags

NGSS.MS-PS3-5

 Work done = Force x _________

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

Tags

NGSS.MS-PS2-2

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

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

• Potential
• Kinetic

Tags

NGSS.MS-PS3-2

If W=Fd
Then how much work is done if it takes 20N to move a box 10 meters

• 0
• 2
• 20
• 200

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

The _______ is the SI unit of energy.

• watt
• joule
• ampere
• volt

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

• constant rate
• single movement involved
• transfer of energy
• increase in the mechanical advantage

Tags

NGSS.MS-PS3-5

The ability to do work is....

• work
• power
• acceleration
• energy

Tags

NGSS.MS-PS3-5