WORK

Question 1

______ refers to a task that is accomplished by exerting physical
and mental efforts.

Answer 1

Work

Question 2

“Work is done only when a force causes an object to move in the same direction as the force”.

TRUE or FALSE?

Answer 2

TRUE

Question 3

What is the formula to find “Work”?

Answer 3

W = F x D

Question 4

An English physicist who studied the nature of heat and
discovered its relationship to mechanical work.

Answer 4

James Prescott Joule

Question 5

Sample problem #1

How much work does a person do in pushing a box
with a force of 10 N over a distance of 4.0 m in the direction
of the force?

Answer 5

40 J

Question 6

Sample problem #2

Find the distance traveled by a box if the work done
is 50 joules and the force exerted is 15 N.

Answer 6

3.33 M

Question 7

What is the formula to find “Distance”?

Answer 7

D = W/F

Question 8

Sample problem #3

Find the distance traveled by a box if the work done
is 470 joules and the force exerted is 180 N.

Answer 8

2.61 M

Question 9

Sample problem #4

How much work does a person do in pushing a box
with a force of 500 N over a distance of 320 m in the direction
of the force?

Answer 9

160,000 J

Question 10

Sample Problem #5
How much work does a person do in pushing a box
with a force of 210 N over a distance of 4.8 m in the direction
of the force?

Answer 10

1,008 J