Worksheet 34

1. Which of the following is not the advantage of machines?

A. Help to travel

B. Help to know the time

C. Help to move heavy loads

D. Help to increase harmful effect to environment

2. These are the steps to design a machine. Arrange the steps in the

correct order.

I. Identify the problem

II. Build the model as planned

III. Choose the design from the sketches made

IV. Generate a few ideas to make comparisons

A. I, II, III and IV

B. II, III, I and IV

C. I, IV,III and II

D. I, IV, II and III

Choose the true or false for the statements below

1. Machines help us to do things that we cannot do.

True

False

2. Work is done easily without the invention of machines.

True

False

3. We need to make the model before identify the problem we face.

True

False

4. Machines carry us from one place to another, for example, cars, trains, ship and airplanes.

True

False

5. A machine is invented to solve certain problems that we face.

True

False