Question 1
1
Which definition is correct and uses only quantities rather than units? Density is mass per cubic metre. Potential difference is energy per unit current. Pressure is force per unit area. Speed is distance travelled per second.
Answer
C
Question bank
A-Level CAIE Physics 1 1 Physical Quantities Question Bank
Practice A-Level CAIE Physics 1 1 Physical Quantities questions by syllabus topic with past-paper context, marks, difficulty and question previews on Eduninja.
Question 1
1
show that the distance moved down the slope is 9.3 m ,
Question 1(a)
1(a)
Underline all the base quantities in the following list. ampere charge current mass second temperature weight
Answer
current, mass and temperature two correct 2/2, one omission or error 1/2
Question 1
1
Measurements made for a sample of metal wire are shown in Fig. 1.1.
Question 1(a)
1(a)
State the appropriate instruments used to make each of these measurements.
Question 1(a)(i)
1(a)(i)
length
Answer
metre rule / tape (not 'rule') B1 [1]
Question 1(a)(ii)
1(a)(ii)
diameter
Answer
micrometer (screw gauge) / digital caliper B1 [1]
Question 1(a)(iii)
1(a)(iii)
resistance
Answer
ammeter and voltmeter / ohmmeter / multimeter on 'ohm' setting B1 [1]
Question 1
1
What is a reasonable estimate of the average kinetic energy of an athlete during a 100 m race that takes 10 s ? 40 J 400J 4000J 40000 J
Answer
C
Question 1
1
Make estimates of the following quantities.
Question 1(a)
1(a)
the thickness of a sheet of paper
Answer
allow \(0.05 \mathrm{~mm \rightarrow 0.15 \mathrm{~mm}\)} B1 [1]
Question 1(b)
1(b)
the time for sound to travel 100 m in air
Answer
allow \(0.25 \mathrm{~s \rightarrow 0.5 \mathrm{~s}\)} B1 [1]
Question 1(c)
1(c)
the weight of \(1000 \mathrm{~cm}^{3}\) of water
Answer
allow \(8 \mathrm{~N \rightarrow 12 \mathrm{~N}\)} B1 [1] ignore number of significant figures
Question 1
1
Which estimate is realistic? The kinetic energy of a bus travelling on an expressway is 30000 J . The power of a domestic light is 300 W . The temperature of a hot oven is 300 K . The volume of air in a car tyre is \(0.03 \mathrm{~m}^{3}\).
Answer
D
Question 1
1
A student estimates the maximum speed of some different moving objects. Which maximum speed is not a reasonable estimate? container ship: \(10 \mathrm{~m} \mathrm{~s}^{-1}\) Olympic sprinter: \(0.1 \mathrm{~km} \mathrm{~s}^{-1}\) racing car: \(9000 \mathrm{~cm} \mathrm{~s}^{-1}\) snail: \(0.01 \mathrm{~km} \mathrm{~h}^{-1}\)
Answer
B
Question 1
1
A student creates a table to show reasonable estimates of some physical quantities. Which row is not a reasonable estimate?
Answer
D
Question 1
1
Which term represents a physical quantity? metre percentage uncertainty quark flavour spring constant
Answer
D
Question 1
1
Which estimate is reasonable? \(1 \times 10^{-3} \mathrm{~kg}\) for the mass of a grain of sand \(1 \times 10^{-2} \mathrm{~m}^{3}\) for the volume of a tennis ball \(1 \times 10^{0} \mathrm{~J}\) for the work done lifting an apple from waist height to head height \(1 \times 10^{4} \mathrm{~W}\) for the power of a light bulb in a house
Answer
C