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Physics Practice Assessment: Paper 1

This assessment covers fundamental concepts in physics including mechanics, energy, and properties of matter.

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Section A: General Physics & Mechanics

1. Which of the following statements is true about a scalar quantity?

• A) A quantity that can be measured.

• B) A quantity that has magnitude but no directions.

• C) A quantity that has a unit

• D) A quantity that has both magnitude and direction.

2. Which of the following consist of base quantities only?

• A) Length, mass, and time

• B) Length, mass, and speed

• C) Mass, volume and speed

• D) Time, mass and density

3. The force per unit mass of an object is equivalent to:

• A) density

• B) pressure

• C) velocity

• D) acceleration

4. The statement “the motion of an object in a straight line with constant velocity” refers to:

• A) motion under gravity

• B) straight line motion

• C) rectilinear uniform motion

• D) uniform motion

5. A pendulum makes one complete swing in 1.8 seconds. What is its frequency?

• A) 0.59HZ

• B) 1.8HZ

• C) 2.3HZ

• D) 0.56HZ

6. Figure 1 below shows a box of density $10\text{g/cm}^3$. What is the mass of the box in grams?

(Dimensions from Fig 1: 2cm x 4cm x 6cm)

• A) 4.8

• B) 58

• C) 48

• D) 480

7. Which of the following instruments can be used to determine the volume of an irregular shaped stone?

• A) A metre rule

• B) A measuring cylinder

• C) A volumetric flask

• D) A measuring tape.

8. A parachutist is released from a great height in a parachute and is falling towards the ground. Considering the parachutist and parachute as one unit, which of the following identifies correctly the three forces acting on the unit?

• A) air resistance, friction, tension

• B) upthrust, magnetic force, drag

• C) air resistance, upthrust, weight

• D) weight, friction, thrust

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Section B: Energy & Matter

9. Which of the following is not a fossil fuel?

• A) crude oil

• B) natural gas

• C) hydroelectric power

• D) coal

10. After energy changes from one form to another you always end up with the same total amount of energy. Which of the following laws explain this rule?

• A) The law of conservation of energy.

• B) The law of energy change.

• C) The law of conservation of linear momentum.

• D) The law of potential energy.

11. What is gravitational potential energy of a body of mass 30kg located 300m above the ground?

• A) 90000 J

• B) 9000 J

• C) 300 J

• D) 6000 J

12. A man applies a force of 600N on a stone to cause it to move through a distance of 3m. Calculate the energy transferred in KJ.

• A) 1800KJ

• B) 1.8KJ

• C) 200KJ

• D) 0.2KJ

13. Which of the following energy sources is a non-renewable.

• A) tidal energy

• B) geothermal energy

• C) wind energy

• D) nuclear energy

14. Which of the following materials best describes the force versus extension curve in Figure 2?

(Curve shows a linear start followed by a sharp curve toward the horizontal)

• A) Concrete

• B) Copper

• C) Rubber

• D) Glass

15. A measure of a material resistance to changes in length is equivalent to:

• A) stress

• B) strain

• C) young’s modulus

• D) elasticity

16. An engineering material shows a stress of 2400Pa when subjected to a strain of 60. Calculate the Young’s modulus of the material in $\text{N/m}^2$.

• A) 2340

• B) 240

• C) 144000

• D) 40

17. Plastics are preferred to iron in plumbing work because they are:

• A) malleable

• B) resistant to corrosion

• C) ductile

• D) biodegradable

18. A ray of light from a ray box is directed into a rectangular glass block. The angle of incidence ($i$) and corresponding angles of refraction ($r$) are measured. A graph of $\sin i$ against $\sin r$ obtained from this experiment is:

• A) (Curved upwards)

• B) (Horizontal line)

• C) (Straight line through origin)

• D) (Straight line with negative gradient)

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END!