Paper 1: Multiple Choice (NO CALCULATOR PERMITTED)
1. Which one of the following contains three fundamental units?
A.
Metre
Kilogram
Coulomb
B.
Second
Ampere
Newton
C.
Kilogram
Ampere
Kelvin
D.
Kelvin
Coulomb
Second
2. Which one of the following lists a fundamental unit and a derived unit?
A.
ampere second B. coulomb kilogram
C.
coulomb newton D. metre kilogram
3. Which one of the following measurements is stated correctly to two significant digits?
A. 0.006 m
B. 0.06 m
C. 600 m
D. 620 m
4. A student measures the current in a resistor as 677 mA for a potential difference of 3.6 V. A calculator shows the resistance of the resistor to be 5.3175775 Ω. Which one of the following gives the resistance to an appropriate number of significant figures?
A. 5.3 Ω
B. 5.32 Ω
C. 5.318 Ω
D. 5.31765775 Ω
5. The ratio is approximately equal to
A. 10–15.
B. 10–8.
C. 10–5.
D. 10–2.
6. The order of magnitude of the weight of an apple is
A. 10–4 N.
B. 10–2 N.
C. 1 N.
D. 102 N.
7. When a force F of (10.0 ± 0.2) N is applied to a mass m of (2.0 ± 0.1) kg, the percentage uncertainty attached to the value of the calculated acceleration is
A. 2%.
B. 5%.
C. 7%.
D. 10%.
8. The power dissipated in a resistor of resistance R carrying a current I is equal to I2R. The value of I has an uncertainty of ±2% and the value of R has an uncertainty of ±10%. The value of the uncertainty in the calculated power dissipation is
A. ±8%.
B. ±12%.
C. ±14%.
D. ±20%.
9. The frequency f of an oscillating system is given by where g and p are constants.
The frequency f is measured for different values of l and a graph is plotted.
Which one of the following will produce a straight-line graph? x-axis y-axis
A.
B.
l
C.
f2
D. f2 10. The diagram below shows two vectors, x and y.
Which of the vectors below best represents the vector c that would satisfy the