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WorksheetsLevers
Total questions: 25
Worksheet time: 9mins
Crowbar is from
First class levers
Second class levers
Third class levers
Hockey pat is a
First class lever
Second class lever
Third class lever
........is used as an increasing force lever.
Paddle
Fishing tool
Bottel opener
............ class levers have effort force between resistance force and fulcrum.
First
Second
Third
In the second class levers........
(R) is between (O) and (F)
(O) is between (R) and (F)
(F) is between (O) and (R)
..........is from third class levers.
See saw
Tweezers
Wheel barrow
...........is used to increase distance.
Nutcracker
Scissors
Manual broom
Stapler is a ..... class lever
First
Second
Third
In the nail clipper
O is between R and F
R is between O and F
F is between O and R
Which of the following is used to avoid dangers?
Plier
Water pump
Coal holder
All..............class levers always conserve effort.
First
Second
Third
The resistance arm is the distance between.......
Effort force and fulcrum
Resistance force and effort force
Resistance force and fulcrum
When the effort force arm is longer than the resistance arm
F is smaller than R
F is larger than R
F is equal to R
In the manual broom, the........
Effort force is smaller than the resistance force.
Effort force is larger than the resistance force.
Effort force equals the resistance force.
Third class levers...........
Always conserve effort
Always don't conserve effort
Sometimes conserve effort
Which of the following conserves effort......
Nutcracker
Sweet holder
Fishing tool
The lever doesn't conserve effort when........
a) Force arm is longer than resistance arm
b) Force arm is shorter than resistance arm
c) Force arm is equal to resistance arm
d) b and c
When, F.A = 25 cm.
R.A = 15 cm.
Resistance force = 10 N.
So, Effort force = .......... N.
5
37
6
20
Calculate the weight of the rock (Resistance force)
60 N
10 N
30 N
The distance between effort force and fulcrum is called........
Resistance arm
Force arm
Fulcrum
The weight of a body is measured by using ...........
One arm scale
Sensitive scale
Spring scale
.............is the mass of one paper clip.
Kilogram
Gram
Newton
When the mass of object on earth is 60 kg, so its mass on moon is........kg
60
600
10
6
The measuring unit of weight is..........
Gram
Kilogram
Kilometer
Newton
When the mass if a body is 30 kg.
So its weight on earth is ........ N.
150
300
60
