Chapter 10 Properties of Matter - Test 2

1. Within the elastic limit, the strain produced in an object is directly proportional to the applied stress. This statement is called Archimedes principle.

1) True
2) False
2. Liquid pressure depends upon density and depth of the liquid.

1) True
2) False
3. The hydraulic press is used to compress raw cotton and cloth into bails

1) True
2) False
4. Oil is more compressible than water.

1) True
2) False
5. If buoyant force is greater than weight of the object, the object floats.

1) True
2) False
6. According to kinetic Molecular theory of matter, the molecules of a gas are always in motion

1) True
2) False
7. Young modulus of wood is 0.3 X 104 Nm-2

1) False
2) True
8. The brakes of all vehicles work on the principle of the hydraulic press

1) True
2) False
9. The insect can walk over the water surface only due to surface tension

1) False
2) True
10. The change in the shape of an object caused due to stress.

1) False
2) True
11. Matter exists in ________ states

1) Two
2) Four
3) Three
4) Five
12. Formula for stress is _____________.

1) Stress = Area/Force
2) Stress = Force X Area
3) Stress = Strain/ Force
4) Stress = Force/Area
13. S.I unit of stress is ___________

1) Nm
2) Nm-2
3) NSec-2
4) m Sec-2
14. Liquid pressure depends on ________


1) force and depth
2) Force and area
3) Force and density
4) density and depth
15. The brakes of some vehicles work on the principle of the ______

1) Newton
2) Brown
3) Archimedes
4) hydraulic press
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