Work Review - 2022

What is the SI unit for work?

• W

• N J

• N d

• J

Work is:

• The direction of the force on an object

• The energy that applies force over a distance in the direction of the force

• The distance an object has traveled because of the force applied to it

• The energy that applies a force

In order to have work, you must have movement

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Holding something = no work

• True

• False

Work depends on ________ & ________

• Force and momentum

• Force and impulse

• Force and distance

• Force and velocity

Mrs. Trant is carrying a 3 kg mug of coffee to her next class that is 30 m away. How much work is being done on the mug?

• 90 J

• 30 J

• 10 J

• 0 J

Work is 0 J if the force being applied is in the opposite direction of the motion:

• True

• False

A 20 N force to the right is used to move a dresser 5 m to the right. What is the work done on the dresser?

• 100 J

• 100 kg m/s

• 4 J

• 0 J

Tags

NGSS.HS-PS3-1

A cart is being pushed with a 6 N force resulting in 120 J of work. How far did the cart move?

• 720 m

• 20 m

• 6 m

• 2 m

80 J of work push a cart 20 m, how much force was exerted on the cart?

• 1600 N

• 1600 J

• 4 N

• 4 J