Question

A. Multiple choice questions
1. With what force does every object in the universe attract other objects near it?
a) frictional force
b) gravitational force
c) elastic force
d) mechanical force
2. What is the force that makes a material resist stretching and go back to its original state
a) muscular force
b) frictional force
c) elastic force
d) gravitational force
3. Which of these is a second-class lever?
a) scissors
b) pliers
c) tweezers
d) bottle opener
4. Which of these is not a simple machine?
a) see-saw
b) scissors
c) bicycle
d) screwdriver
5. What is used to convert water energy to electrical energy?
a) turbine
b) windmill
C) solar cooker d) all of these
B. Identify the simple machine​

Answer 1

Answer:

1:d,2:c,3:d,4:c,5:a

Answer 2

Answer:

1. gravitational force
2. elastic force
3. bottle opener
4. bicycle
5. windmill