Page 1 - 3.Home Assignment-MACHINES
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SAI INTERNATIONAL SCHOOL
CLASS-IV
SUBJECT - SCIENCE
CHAPTER 10-FORCE, WORK AND ENERGY
SUB TOPIC- MACHINES
Objective Questions:
1. Fill in the blanks:
a) ______________is used to draw water from wells.
b) A bottle opener is a _____________.
c) Door knob is a ____________.
d) Ramps are examples of ____________.
e) A screwdriver is used to push the _________forward by rotating it.
f) ______________is used to cut logs of trees.
Subjective Questions:
2. Identify the simple machines in the following pictures. Give reasons
for your answer.
B. C.
A.
D. E. F.
