Work and Power

Which of the following best defines WORK?

• When a force makes an object move in the direction of the force.

• It is the measurement of an objects mass times the gravity.

• It is a push or a pull.

• A force resisting the relative motion of solid surfaces sliding against each other.

Which of the following best defines POWER?

• The speed of something in a given direction.

• It is energy possessed by an object relative to its position.

• It is a push or a pull.

• It is how fast work is done.

Which of the following best defines APPLIED FORCE?

• The speed of something in a given direction.

• It is energy possessed by an object relative to its position.

• It is a push or a pull.

• It is how fast work is done.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

What is the UNIT of measurement for WORK?

• Newtons (N)

• meters (m)

• Watts (W)

• Joules (J)

What is the UNIT of measurement for POWER?

• Newtons (N)

• meters (m)

• Watts (W) or Joules/second (J/s)

• Joules (J)

What is the UNIT of measurement for FORCE?

• Newtons (N)

• meters (m)

• Watts (W)

• Joules (J)

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

WORK transfers energy from one object to another.

• True

• False

What is the formula to solve for WORK?

• W = P x t

• W = P / t

• W = t / P

• W = P - t

Tags

NGSS.HS-PS2-1

What is the formula to solve for POWER?

• P = W x t

• P = W / t

• P = t / W

• P = W - t

What is the formula to solve for TIME?

• t = W x P

• t = W / P

• t = P / W

• t = W - P