NEW
Font size
S
M
L
XL
WorksheetsA Level Physics Year 1 (OCR B)
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
A radio gives a strong signal when the antenna is vertical and a weak signal when horizontal. What property of radio waves is being demonstrated?
a)
That they are electromagnetic waves.
b)
That they are longitudinal waves.
c)
That they have a varying amplitude.
d)
That they are polarised.
2.
A transmitting aerial emits radio waves of frequency 1.0 GHz. What is the wavelength?
a)
0.3 mm
b)
0.3cm
c)
0.3m
d)
0.3km
3.
Inside a data projector the illuminated object display is 45 mm wide.The focused real image on a distant screen is 1.35 m wide.
Calculate the linear magnification of the image.
Calculate the linear magnification of the image.
a)
0.33
b)
3
c)
30
d)
300
4.
A movie has 720×1280 pixels each coded by 24 bits at 50 frames per second. Calculate information for a one hour movie.
a)
4.0 TBytes
b)
500 GBytes
c)
10 GBytes
d)
6 GBytes
5.
A noisy signal has a signal to noise ratio of 33. How many bits should be used to encode the signal digitally?
a)
3
b)
4
c)
5
d)
6
6.
A cell with an emf of 1.55V and an internal resistance of 0.40Ω. The current is 250mA and the load resistance is 5.8Ω.
Calculate the p.d. across the load resistor.
Calculate the p.d. across the load resistor.
a)
0.23 V
b)
0.9 V
c)
1.45 V
d)
1.55 V
7.
A resistor is rated at 470Ω and maximum power of 0.50W. Calculate the voltage across the resistor at its maximum power.
a)
15.3 V
b)
235 V
c)
940 V
d)
1 mV
8.
Steel is tough. Which of the following is not a property of steel?
a)
Stiffness
b)
Brittleness
c)
Strength
d)
Hardness
9.
Human hair has these properties:
Diameter 50μm
Young modulus 5.0 x 109 Pa
Breaking stress 3.0 x 108 Pa
Breaking strain 25 %
Calculate the stress at 5% strain.
a)
1.3 x 109 Pa
b)
15 MPa
c)
3.5 x 108 Pa
d)
2.5 x 108 Pa
10.
Young's double slit experiment is performed.
λ=590nm, screen distance L=1.2m, fringe separation x=3.5 mm. Calculate the slit separation d.
λ=590nm, screen distance L=1.2m, fringe separation x=3.5 mm. Calculate the slit separation d.
a)
2.0 x 10-4 m
b)
1.7 x 10-9 m
c)
5.2 x 10-4 m
d)
6.3 x 10-7 m
11.
Monochromatic light passes through a diffraction grating with grating spacing 2.0×10–6 m. The angle of the first-order maximum in the diffraction pattern is 17°.
Calculate the wavelength of the light.
Calculate the wavelength of the light.
a)
1.9 x 10-6 m
b)
5.8 x 10-7 m
c)
190 nm
d)
680 nm
12.
Three photons have the following wavelengths : A - 700 nm, B - 580 nm, C - 520 nm
Calculate the energy of the photon with the greatest energy.
Calculate the energy of the photon with the greatest energy.
a)
1.8 eV
b)
2.1 eV
c)
2.4 eV
d)
2.9 eV
13.
A bee of mass 120 mg flies at a speed of 3.0 m s–1.
Calculate its kinetic energy.
Calculate its kinetic energy.
a)
5.4 x 10-4 J
b)
0.54 J
c)
54 J
d)
0.18 J
14.
A rocket of mass 10 000 kg lifts off from earth accelerating at 3.1 m s–2.
Calculate the resultant force acting on the rocket.
Calculate the resultant force acting on the rocket.
a)
31 N
b)
31 kN
c)
3.2 kN
d)
3200 N
15.
A ball is kicked horizontally at 5ms-1 from a vertical ledge 1.2m high. How far away from the bottom of the ledge does the ball land?
a)
2.5m
b)
1.2m
c)
1.7m
d)
0.49m
Reset
