CBSE Class 5 Science Simple Machine Assignment

FILL IN THE BLANKS

1. Claw hammer and scissors are examples of lever of ____________ order.

2. If we place two inclined planes together, back to back, we get a ___________.

3. The downward force which you apply on a tin for opening the lid is called ______

4. The stick trough which force is applied for lifting the boulder is considered as _______.

5. In which order of lever, the fulcrum is at the centre and load and effort are on the opposite sides _____________

6. Tongs, bread knife, forceps etc are the common examples of levers of _____________ order.

7. A slide in a park is based on which simple machine ___________.

8. An axe is a wedge used as a _____________

9. A man rowing a boat is an example of lever of _______________ order.

10. When an object floats on water it displaces water equal to its __________________.

11. The apparent loss in weight of an object is _______________ to the weight of water ________________.

12. The weight of an object in water is called its ____________ weight and the weight in air is called ____________ weight.

13. Objects float, because the ______________ force supports their weight.

Give two example of each of the following.

1. An inclined plane ________________ ________________

2. First order of lever ________________ ________________

3. Second order of lever ________________ ________________

4. Third order of lever ________________ ________________

5. A wheel and axle ___________ ________________

6. Wedge __________ ________________

NAME THE FOLLOWING

1. An inclined plane wrapped around a cylinder or a rod_____________.

2. It consists of two cylinders which revolve round a common point____________________

3. A rigid bar that can turn about a fixed point called fulcrum is known as _____

4. It is used to draw water from the well. _______________

5. The upward push of water on a floating object ______________.

6. We use this to hold the things together as they cannot be easily pulled out ______.

III. Draw any one simple machine from each order of lever , name it and mark load, fulcrum and effort points.