Page 18 - Ai Robogenius

3. Mark the simple machine used to lift a bucket from a well. COMPETENCY-BASED QUESTIONS

(i) Lever (ii) Pulley 1. Ankita needs to lift a heavy box to put it on a high shelf. Which simple machine

(iii) Inclined plane (iv) Wheel should she use to make the task easier?

4. Identify the machine that lift heavy materials with less effort. 2. Riya wants to carry a large bag of sand from one end of the garden to the other.
She has a wheelbarrow. What simple machines are working in the wheelbarrow?
(i) Lever (ii) Pulley

(iii) Inclined plane (iv) Wheelbarrow

5. Which simple machine is used to split wood with an axe?

(i) Lever (ii) Wedge

(iii) Pulley (iv) Wheel

B. Write ‘T’ for true and ‘F’ for false.

1. A bicycle is an example of a simple machine.

2. The wheel and axle help things move or lift easily.

3. An inclined plane makes it harder to push objects uphill.

4. Scissors have two levers joined at a fulcrum.

5. Pulley is a long bar that you push down on one side to lift

something on the other side.

C. Fill in the blanks using the given hints:

1. is a big machine that uses pulleys to lift heavy

things up. Hints

2. A machine is a tool that helps you do work more Simple
Escalator
easily.
Crane
3. A machine is made up of two or more simple Motors
machines that work together to make a task easier. Electricity

4. An is a complex machine that uses pulleys and Complex

inclined planes to move people up and down safely and
easily.

5. Simple machines don’t need or to work.

AI RoboGenius - II
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