Work and Energy - Physical Science

_______ is force applied through a distance.

• Effort
• Resistance
• Power
• Work
  

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.HS-PS2-1

Which of the following equations should be used to calculate work done?

• W = F × d
• W = F/d
• W = F × a
• W = m × d

You apply a force of 18 N to a dresser and move it 3.0 m. How much work did you do on the dresser?

• 54 J
• 6.0 J
• 21 J
• 27 J

A watt is equal to _______.

• one newton-meter
• one meter per second
• one newton per second
• one joule per second

If you apply a force of 10 N to a box and push it 10 m in 10 s, how much power did you deliver?

• 30 W
• 1,000 W
• 10 W
• 100 W

Tags

NGSS.HS-PS3-2

How does a ramp make it easier to move a heavy object a certain distance?

• by decreasing the amount of force required to move the object
• by decreasing the amount of work required to move the object
• by decreasing the distance the object moves
• by increasing the amount of force required to move the object

Tags

NGSS.MS-PS2-1

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NGSS.MS-PS3-5

A _______ is a device that does work with only one movement

• compound machine
• hand-operated machine
• force multiplier
• simple machine

_______ is the ability to cause change.

• Momentum
• Work
• Power
• Energy

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

NGSS.HS-PS3-4

NGSS.HS-PS3-5

What two factors determine how much kinetic energy an object has from its motion?

• the object’s position and mass
• the object’s speed and surface area
• the object’s speed and mass
• the object’s speed and position

Tags

NGSS.HS-PS3-2