1. Which simple machine helps reduce effort by changing direction of force?
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Sci – Chapter 07: Force and Simple Machines
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Question 1 of 20
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2. Gears help change speed and direction of motion.
3. A plumb line is used by builders.
4. Which are simple machines?
5. Which force is needed to kick a football?
6. Match the simple machine with its use.
7. Why does a book lying on a table remain at rest?
8. Simple machines make work easier.
9. Which force pulls objects toward the Earth?
10. Without force, objects cannot move.
11. Which objects use gears?
12. Which force is involved when iron sticks to a magnet?
13. Which force acts even when objects are not touching?
14. Which instrument is used to check if something is vertical?
15. Why does a ball thrown upward come back down?
16. Which force helps us walk without slipping?
17. Match the force with its example.
18. Which are uses of simple machines?
19. Which simple machine helps lift a bucket from a well?
20. What happens when two equal forces act in opposite directions?