Engineering Physics I Practice Test 4

1. Calculate the Young’s modulus in the cantilever depression method. The length is 1m which is suspended with a load of 150gm. The depression is found to be 4cm. The thickness of the beam is 5mm and breadth is 3cm.

2. Why locations next to large water bodies tend to have a moderate climate than those further inland?

3. When a rope is pulled on either side, what is the stress acting on it?

4. No material is perfectly elastic.

5. Two thermometers are constructed in the same way except that one has a spherical bulb and the other an elongated cylindrical bulb. Which of the two will respond quickly to temperature changes?

6. What is the weight of the body at the centre of the earth?

7. If the distance between the earth and the sun were half its present value, the number of days in year would have been ___________

8. At a critical temperature, the surface tension of a liquid ___________

9. What happens when the stress applied to the body is increased beyond the maximum value and is removed after some time?

10. It is easier to swim in sea water than in river water.