NEW TRUST SCIENCE ACADEMY

 Physics  9^th

Phase-1                                                                                                                                      unit 8

Name: ______________                                                                                                          Date:____________________

Q: 1. Tick the correct answer.

1. In which of the following state molecule do not leave their position?
2. Solid liquid                c. gas                     d. plasma
3. What should be the approximate length of a glass tube to construct a water barometer?

2. .5m                              1m                     c. 2.5m                  d. 11m
3. Which of the substance is the lightest one?
4. Copper                        mercury          c. lead                   d. aluminum
5. Density of lead is
6. 11200 kgm^-3           13600 kgm^-3        c. 8900 kgm^-3      d. 19300 kgm^-3
7. 1 litter is equal to
8. 10^-3m³                 10^-6m³                     c. 10^-3gcm³                    d. none

Q: 2. Short questions

1. How does the fourth state of matter form?
2. What is elastic limit?
3. What is deforming force?
4. What is tensile strain?
5. Define Hook’s law also write its formula.

Q: 3. Long questions

1. Explain Archimedes principle.

A wooden cube of sides 10cm each has been dipped completely in water. Calculate the upthurst of water acting on it.

best of luck…!