WORK ENERGY THEOREM

What is the formula for Work?

• E=mc²

• W= F x d

• P = W/T

The SI Unit for Work

• Newton (N)

• Joule (J)

• Second (s)

How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?

• 3.8 m

• 3.7 m

• 3.6 m

A construction worker pushes a wheelbarrow 5 m with a horizontal force of 50 N. How much work is done?

• 10J

• 55J

• 250J

What is the total work done on the object? It moves 1 meter to the right.

• 0 Joules

• 0.5 Joules

• 500 Joules

• 50 Joules

George carries a box 6 meters to the right. Find the work done by the man on the 15 kg box.

• 900 Joules

• 0 Joules

• 90 Joules

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

How much work is being done with 200 N of force to the right on object that moves 426 meters to the right? (assume the force and displacement are in the same direction)

• 85,200 J

• 45,620 J

• 90,480 J

• 62,329 J

A force of 80 N is used to pull a 10-kg block at an angle of 60 degrees (shown above) to the right. If the block moves 5 meters to the right, how much work was done on the block.

• 4000 N*m

• 200 N*m

• 2000 N*m

• 346.4 N*m

• 400 N*m

A box is pushed by 20 N force to the right and displace for 0.1 m. What is the work done?

• 0.005 J

• 0.1 J

• 1 J

• 2 J