Page 42 - Science Class 6 Times Publication
P. 42
7. Answer these questions in detail:
a. What are the advantages of simple machines ?
b. How can you prove that a simple machine changes the
direction of effort ?
c. What is a lever ? Explain with the help of a diagram.
d. Explain the structure of a wheel and axle with the help of a
diagram.
e. What is a pulley ? How does it help in lifting weight ?
f. What is an inclined plane ? How is it useful ?
8. Draw the well-labelled diagrams of the following:
a. Inclined plane b. A second class lever
c. Single xed pulley d. Single movable pulley
Project Work
Observe different instruments that are being used at your home
and make a list of them. Which of them are simple machines?
Classify them into different types. Also draw their diagrams.
Times' Crucial Science and Environment 38 Book 6
