Quantities, Mass and Weight(Senior Class Physics Study by Topics Test) : GATE Academy

Welcome to your Quantities, Mass and Weight(Senior Class Physics Study by Topics)

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PHONE NUMBER

1. We can express gravitational acceleration in

meters per second squared

kilograms per meter

meters

kilograms per pound

2. When we talk about astronomical units, (AU) we talk about

temperature

distance

time

mass

3. What would happen if the earth suddenly stopped moving in its orbit around the sun, but nothing else changed?

The earth would fly out of solar orbit

Nobody knows

The earth would remain fixed at the spot

The earth would fall into the sun

4. Two points on a velocity time graph have co-ordinates (5s, 10m/s) and
(20s, 20m/s). Calculate the mean acceleration between the two points.

0.67m/s²

2.00m/s²

1.50m/s²

0.83m/s²

5. A vernier scale was formed by dividing a length of 19mm into 20 equal parts. If the vernier scale is used with a main scale marked in mm, what is the smallest distance that can be measured?

0.001mm

0.05mm

0.1mm

0.5mm

0.005mm

6. Which of the following unit is equivalent to Kgm/s?

N/s

Nms

J/s

7. Which of the following set of physical quantities are vectors?

Electric field potential & Electric field intensity

Capacitance & Inductance

Friction & Momentum

Force ratio & Velocity ratio

Energy & Power

8. The dimensions of viscosity are

I. ML^-1T^-1

II. M²L^-1T^-1

III. M^-1L^-1T^-1

IV. MLT^-1

III

9. Which of the following are scalar quantities?
I. Momentum
II. Energy
III. Mechanical advantage
IV. Thrust

I & IV Only

II & IV Only

II & III Only

III & IV Only

I & II Only

10. Which of the following statements are true about the spring balance and the chemical balance?

I. Both are used to measure the mass of an object
II. Either of them may be used to measure the weight of an object
III. The spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments
IV. A change in gravity changes the reading of a spring balance but not that of a chemical balance.

I and III

I and IV

III and IV

I, II and III

II and III

11. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused

Slantingly towards the right on the markings

Vertically downwards on the markings

Vertically upwards on the markings

Slantingly towards the left on the markings

12. Which of the following quantities has the same unit as the Watt?

Force x velocity

Force x time

Force x acceleration

Force x distance

13. A bird flying due north with a velocity of 15m/s sheds a feather in an air current blowing at 20m/s due east. The feather will move with a velocity of

20m/s east

25m/s east of north

15m/s north

25m/s east of south

25m/s west of south

14. Which of the following is the dimensions of pressure?

I. ML^-1T^-2

II. ML^-3

III. MLT^-2

IV. ML²T^-3

III

15. A vector of magnitude 5 units in the north direction is combined with another vector to give zero resultant. The other vector is

5 units in the north direction

5 units in the south direction

5 units in the west direction

5 units in the east direction

16. Amanda walks 1km due east and then 1km due north, her displacement is

1km N15°E

√2 km N60°E

1km N30°E

2km N75°E

√2 km N45°E

17. Which of the following parameters manifests itself as a vector quantity?

visible-light intensity

mass

velocity

temperature

18. Two cars moving in the same direction have speeds of 100km/h and 130km/h.
What is the velocity of the fastest car as measured by an observer in a slower car?

200km/h

130km/h

30km/h

230km/h

19. Which of the following physical quantities is not a vector?

work

force

velocity

magnetic induction

electric field intensity

20. Which of the following sets consist entirely of a scalar quantity?

Impulse, Mass & Magnetic flux

Pressure, Work & Electric potential

Speed, Momentum & Distance

Displacement, Electric field & Energy

21. One of the following readings represent the measurement of the length of a metal rod using vernier callipers.

5.0cm

5cm

5.165cm

5.16cm

5.160cm

22. The power source of a ticker-timer vibrates 40 times in one second. If the ticker-timer made 200 dots during an experiment, determine how long the experiment lasted.

25 seconds

45 seconds

5 seconds

15 seconds

23. Which of the following is a vector quantity?

Current density

Current

Time

Mass

24. A stream is flowing at 0.75m/s and a boat heading perpendicularly to the stream landed at the opposite bank at an angle 30°. Calculate the velocity of the boat?

1.50m/s

1.00m/s

0.86m/s

0.65m/s

25. An object moves 4m eastwards and then 3m southwards. Its displacement from its original position is

7m SE

1m SE

12m SE

5m SE

26 out of 25

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