Advertisements
Advertisements
Question
Classify the following as a lever, a pulley and an inclined plane:
A needle
Advertisements
Solution
A needle – An inclined plane
RELATED QUESTIONS
When is work said to be done by a force?
Can a machine have an efficiency of 100%? Give a reason to support your answer.
Why is a machine not 100% efficient?
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
Classify the following as a lever, a pulley and an inclined plane:
A wedge
Classify the following as a lever, a pulley and an inclined plane:
A slide
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
What is a lever?
Rearrange the letters and find out the name of the tool.

R L E V E
| ______ | ______ | ______ | ______ |
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
