Force Work Power

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

• 12 J

• 8 J

• 20 J

• 5 J

Tags

NGSS.MS-PS3-5

Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?

• 100 watts

• 400 watts

• 104 watts

• 50 watts

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

• 18 m

• 4 m

• 10 m

• 6 m

When 142 J of work is done in pushing a box horizontally 13.3 m, how much force is applied?

• 10.7 W

• 18,886 N

• 10.7 N

• 1,888.6 N

Tags

NGSS.HS-PS2-1

A boy pushed a 20 kg box over a distance of 2 m. Calculate the work done. (Assume gravitational force acting on an object of mass 1 kg = 10 N)

• 0 J

• 4 J

• 40 J

• 400 J

A kid throws a ball with a force of 70N over 1.1 meters. How much work did he do?

• 77 joules

• 70 joules

• 7.7 joules

• 11 joules

Tags

NGSS.MS-PS2-2

Bob (80 kg) uses 180 N of force to get him up the slope. The vertical distance is 2 m and the diagonal is 10 m. Calculate the work he does.

• 1600 J

• 160 J

• 3600 J

• 1800 J

Tags

NGSS.MS-PS2-2

Diagram shows a student lifting a weight of 500 g 0.5 m vertically from the floor. If the force recorded on the spring balance is 5 N, calculate the work done by the student.

• 2500 J

• 250 J

• 2.5 J

• 0 J

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

It took 500 Newtons of force to push a car four meters. How much work was done?

• 2000 J

• 125 J

• 0.008 J

• 500 J

Tags

NGSS.MS-PS2-2

How much force is pushed on this object?

• 4 N

• 16 N

• 0.25 N

• 16 J

Tags

NGSS.MS-PS2-2