5. Answer the following questions.
a. Define a simple machine. Give one example of
each type of the machine.
b. What type of machine is shown in the diagram?
Write the length and height of slope in it.
c. Identify the types of pulleys given in the
diagram. Which of them can do work
by using less effort ? Why?
d. Define lever and mention its types with one
example of each.
e. What is the principle of the lever ?
f. Sort out different types of levers from followings.
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Answer:
Predict which substance in each pair will have higher boiling and
melting points.
Explanation:
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