Physics Grade 9 Unit 1 Test Word File
Physics 9th Unit: 1 Physics Grade 9 Unit 1 Total Marks = 30 Time Allowed:- 1 h
Name | Physics Grade 9 Unit | Roll no. |
|
|
Q.No.1 Select the correct answer of the following. Cutting or erasing is not allowed. (6)
| Sr# | Questions | A | B | C | D | |
| 1 | A student claimed the diameter of the wire as 1.032 cm using a screw gauge. Up to what extent do you agree with it? | 1 cm | 1.0 cm | 1.03 cm | 1.032 cm | |
| 2 | Andromeda is one of the ---- of galaxies of the known universe | Millions | Billions | Thousands | Hundreds | |
| 3 | The least count of a ruler is --- | 1 mm | 0.01 mm | 0.1 mm | 0.001 mm | |
| 4 | is ---- prefixes. | Femto | Peta | Hecto | Tera | |
| 5 | How many liters in 1 m3 volume. | 100 mL | 1000 mL | 100 L | 1000 L | |
| 6 | The Moon is -------- away from the earth. | 3.84´104 m | 3.84´108 m | 3.84´104 Km | 3.84´106 m | |
Q.No.2 Give short answers to the following. (14)I. Define prefixes and give one example. II. Define Plasma physics III. Estimate your age in seconds. IV. Why do we need to measure an extremely small interval of times? V. Find the base quantities involved in FORCE. VI. Write down a formula to find the least count of screw gauge. VII. How to use a measuring cylinder in measuring the volume of an irregular-shaped solid? Q.No.3 A screw gauge has 50 divisions on its circular scale. The pitch of the screw gauge is 0.5mm. What is its least count? · Your hairs grow at the rate of 1mm per day. Find their growth rate in nm s-1. · (c)Write down seven base quantities, their units with symbols |
| ||||||