Advertisements
Advertisements
Question
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
Options
True
False
Advertisements
Solution
False.
There are six types of simple machines.
APPEARS IN
RELATED QUESTIONS
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Answer the following.
What do you understand by a complex machine?
What is an inclined plane?
Comment on the statement ‘The mechanical advantage of a machine is greater than 1’. Give an example of a lever mechanical advantage is:
(i) greater than 1.
(ii) Equal to 1.
Classify the following as a lever, a pulley and an inclined plane:
Scissors
Classify the following as a lever, a pulley and an inclined plane:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A knife
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
Why is this so traveller’s bags have wheels?
The idea of a simple machine originated with the Greek philosopher Archimedes.
