WorksheetsPhysics Worksheet - Work, Power and Simple Machines
Total questions: 22
Worksheet time: 30mins
The following picture that shows the principal of wheel and axle is ...
Type 1
Type 2
Type 3
Type 4
The object that is in the screw category is....
30 N
45 N
60 N
90 N
The second class (type 2) of lever is shown by the picture…
(A)
(B)
(C)
(D)
Mechanical advantage (MA) is comparison between ...
load and effort
effort and load
weight and mass
mass and effort
If the work done by the car is 20 kJ, how much force exerted by the car to go from A to B?
45,000 N
4000 N
800 N
200 N
These are the components of a lever, except...
Pivot
Force
Load
Axle
Look at the picture of pulley. Mechanical Advantage of the system is…
4
3
2
1
The incorrect statement about the characteristics of simple machines is…
It has mechanical advantage
wedge composed from 2 incline plane
Mechanical advantage connected with load without effort
Consists of lever, incline plane, pulley, axel and wheel, screw, wedge
What is the mechanical advantage of the house ladder in the picture above?
12
32
2
1/2
If it takes 25 N to slide the box up the ramp, how much work will it take to slide the box up?
125 J
500 J
200 J
62.5 J
With the left pulley, Budi can pull a load 200 N, with the same force how big the load can be pulled by Budi if he uses the combined pulley at the right side?
400 N
300 N
200 N
100 N
How long would it take a 600 W electric motor to do 108 kJ of work?
1 minute
2 minutes
3 minutes
4 minutes
A kid pushed a wagon in 20 seconds with 20 N of force. He pushed it a total of 10 meters before he gave up. How much power did he use?
400 Watt
200 Watt
100 Watt
10 Watt
The distance traveled by the car while moving with work done of 15 000 J and a force of 500 N is … m.
30
3
25
250
the simple machine that has the same working principle with the picture is ...
ladder
wheel barrow
stapler
screw
From the picture, the load is 400 N and it will be pushed by the men on 250 cm inclined plane with 150 cm height from the ground. The minimum effort …
120 N
180 N
220 N
240 N
A 75 kg man pushes on a 5 Mton wall for 250 s but it does not move. How much work does he do on the wall?
1,250 J
187,500 J
718,750 J
0 J
Fishing - rod is one of the example of lever. The composition of this lever is…
Pivot - Effort - Load
Load - Pivot - Effort
Pivot - Load - Effort
Effort - Pivot - Load
The picture shows a complex machine that's combined from one or two simple machines. The correct simple machine except .... .
lever
wheel and axle
wedge
screw
How much work does Bayu need to lift a 20 kg sack of potatoes vertically 7 m?
1.4 J
14 J
140 J
1400 J
The iron ball with 600 N of weight is moved by a lever with 150 N of force. If the load arm is 30 cm, then the effort arm is…
1.2 m
12 m
120 m
0.12 m
Mechanical advantage of this pulley system is ...
4
3
2
1
