Try this as often as you like. You will get a different set of questions each time you attempt this quiz.
A force of 20 newtons causes a stone to move a certain distance. If the work done in moving the stone is 2 joules. How far did the stone move?
0.1 metre
40 metres
18 metres
22 metres
Work of 44 joules is done in moving stone through a distance of 4 metres. What force has been applied?
11 newtons
48 newtons
176 newtons
40 newtons
The equation for work done is written as
Work = force × distance moved
Work = force ÷ acceleration
Work = mass × acceleration
Work = force × acceleration
What is the work done when a force of 10 N moves a stone a distance of 5 metres?
50 joules
15 joules
5 joules
2 joules
The unit of work is called after which one of the following scientists?
James Joule
James Watt
Robert Hooke
Isaac Newton
Anything that causes an object to accelerate is known as a
force
mass
speed
density
A weightlifter lifts a wight of 150 kg to a height of 2 metres. How much work has been done?
3,000 joules
300 joules
750 joules
75 joules
The unit of energy is the
joule
newton-metre
newton
metre per second
A shopping trolley is pushed a distance of 50 metres from a supermarket to the car with a force of 200 newtons. What is the work done in moving the trolley?
10 kJ
10 joules
10,000 kilojoules
40 joules
A 180 kg weight is raised to a height of 1.8 metres by a weightlifter. How much work has the weightlifter done?
3240 joules
324 joules
1000 joules
100 jouiles
What is the work done when a forklift raises a 400N object through a height of 2m?
800 J
200 J
0.005 J
402 J
What distance will an object be moved when 200J of work are done with a force of 10N?
20 metres
200 metres
2000 metres
210 metres
What one of the following is the correct unit of power?
Watts
Joules
Newtons
Newton-metres
What is the power of an engine that does 6000 joules of work in 60s?
100 watts
10 watts
360 kW
1 W
How much work is done by a 100W engine in 120s?
12,000 J
1200 joules
120 J
0.833 joules
An object gains a certain amount of potential energy when it is raised a height of 10 metres. If it is now raised a height of 20 metres, its potential energy is
doubled
halved
the same
four times as much
A body will have potential energy because of its
position
speed
acceleration
size
What type of energy does water in a flowing river have?
Kinetic
Potential
Magnetic
Electrical
A block of wood is resting on a table. For work to be done on the block
the block must move because of a force acting on it
a force must act on the block
the block moves whether or not a force acts on it
the block must not move
In which one of the following examples is no net work done?
A car travelling at a constant speed on a flat road
A car accelerating down a hill
A car decellerating on a flat road
A car decellerating as it goes up a hill
Energy is measured with the same unit as
work
power
force
velocity
A bag weighing 20 newtons is lifted 2 metres onto a shelf. How much work has been done?