PHYSICS F4: MEASUREMENT (Chapter 1)

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1. Which of the following is NOT in the field of physics study? *

5 points

Astronomy

Meteorological

Nuclear medicine

Nutrition

2. The SI unit of which physical quantity is correct? *

5 points

Area : cm^2

Force : kg ms^-1

Mass : mg

Density : kg m^-3

3. Which of the following physical quantities is a derived quantity? *

5 points

Length

Temperature

Mass

Force

4. Which the following is a base unit? *

5 points

Coulomb

Watt

Second

Joule

5. Initial velocity u, final velocity v, time t and another physical quantity k is related by the equation v - u = kt. The unit for k is *

5 points

m s-1

m-1 s

m s-2

m2 s-2

6. Diagram 1 shows the graph of potential difference against the current. Which of the following statements is NOT true? *

5 points

The gradient of the graph has a positive value

The value of the potential difference is approximately 1.5 V when the current is zero

The value of the potential difference decreases uniformly according to the current

The apparatus for measuring the potential difference is the voltmeter

7. Which of the following force-compression graphs shows that the force is directly proportional with the compression of a spring? *

5 points

8. Table 1 shows the data of an experiment. Which of the following statements is true about the experiment? *

5 points

The variable that is not dependant on the experiment is the temperature

The variable that is dependent on the experiment is the time

As the time increase, temperature increase

Temperature is directly proportional to time

9. Diagram 2 shows a graph plotted by a student. Which of the following is the best conclusion which can be drawn from the graph? *

5 points

y increases as x increases

y increases linearly to x

y is directly proportional to x

y is inversely proportional to x

10. Diagram 3 shows a graph of H against t^2. Which of the following statements about the graph is NOT correct?

5 points

The graph is in the form of a “best-fit” straight line

The manipulated variable is H

H is directly proportional to t^2

The graph has a positive gradient

Clear selection

11. A car is moving with velocity 75 km h-1. What is the velocity in m s-1? *

5 points

12.5

20.8

16.7

10.4

12. Which of the following is not a purpose of plotting graph in scientific investigation?

5 points

Giving a consistent measurement

Finding relationship between two variables

Find the values that out of range

Interpreting data

Clear selection

13. The equation below shows the relationship between image distance, v with magnification, M, for a convex lens. [ v - 10 = 10M ]. Which of the following graphs shows the relationship between v and M for the above equation? *

5 points

14. The graph shows the relationship between v and t. The relationship between v and t can be represented by the equation *

5 points

v = t + 5

v = - t + 5

v = t + 1

v = - t + 1

15. Table 2 shows the results of an experiment to investigate the relationship between load and extension when a spring is stretched. The original length of the spring is Lo = 15.0 cm. What is the responding variable?

5 points

Load, F

Extension, x

Original length of the spring, Lo

Material used to make the spring

Clear selection

16. Which quantity is NOT derived from mass? *

5 points

momentum

force

acceleration

work done

17. Scalar quantities are quantities that have … *

5 points

magnitude only

both magnitude and direction

direction only

18. Which of the following is a scalar quantity? *

5 points

Velocity

Acceleration

Distance

Displacement

19. Based on formula of stretching force, F: F = kx : where x = expansion and k = constant. The unit of ‘k’ is

5 points

kg m–1

N m–1

N m

kg m–2

Clear selection

20. Which of the following statements describe a scalar quantity?

5 points

a car moving with 60 km h–1 to the left.

Speed of light in vacuum is 3.00 × 10^8 m s–1.

An aeroplane moving in air against air resistant 1 000 N backwards.

A trolley moving with velocity, v = 1.2 m s–1 at t = 5.0s

Clear selection

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