EASY
6th ICSE
IMPORTANT
Earn 100

An effort force of 20 N is used to lift a load of 60 N by a machine. Calculate the mechanical advantage of the machine.

Important Questions on Simple Machines

EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 4 - Simple Machines>EXERCISES>Q 3
The effort arm of a lever is 50m and the load arm is 5m, Calculate the effort force required to lift a load of 200N.
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 4 - Simple Machines>EXERCISES>Q 4
A lever used to lift a heavy box has an effort arm of 4 meters and a load arm of 0.8 metres. What is the mechanical advantage of the lever?
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 4 - Simple Machines>EXERCISES>Q 5
A rake is held so that its input arm is 0.4 meters and its output arm is 1.0 metres. What is the mechanical advantage of the rake?
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 4 - Simple Machines>EXERCISES>Q 6
A child’s toy rake is held so that its output arm is 0.75 meters. If the mechanical advantage is 0.33, what is the input arm length?
MEDIUM
6th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 4 - Simple Machines>WORKSHEET>Q 1

Solve the crossword puzzle using the hints given below:

Question Image
Across:
2. A lever we use to eat food with
7. A wheel that turns freely on an axis
8. In a class 2 lever, this is at the centre
9. It is an example of a class 2 lever with a wheel

Down:
1. In class 3 lever, it is in between the fulcrum and load
2. It is a special type of inclined plane
3. It is a wedge
4. A complex machine
5. It is an example of a class 3 lever
6. It is a class 1 lever