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WorksheetsI level Review Physics S2
Total questions: 45
Worksheet time: 43mins
Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.
Person A
Person B
If you lift a box that is twice as heavy as your friend you are doing
the same amount of work.
two times more work than your friend.
half as much work as your friend.
Cannot be determined.
If a 0.5 kg ball is thrown up with 250 J of kinetic energy, how high will it go?
(HINT: At the ball's highest point it has stopped.) KE = 1/2mv2
g = 9.8 m/s2
51 m
25.5 m
12.76 m
31.6 m
A cliff diver with a mass of 125 kg jumps off a 50m high cliff, how fast will he be traveling just before he hits the water? (His height at this point is 0m)
(HINT: Find PE first.) KE = 1/2mv2
g = 9.8 m/s2
61,250 m/s
980 m/s
31.3 m/s
247.5 m/s
What is the bending of waves as they enter a new medium called?
A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects
decrease
increase
remain the same
When a wave pulse hits the end of the rope that is fixed (known as a fixed boundary), the pulse returns with no change of phase.
True
False
When a wave pulse hits the end of the rope that is free to move (known as a free end), the pulse returns with on the same side.
True
False
The speed of sound depends on these two things:
The type of medium and the temperature of the medium
Speed of the medium and temperature of the medium
Temperature of the medium and sound of the medium
None of the above
Sound waves that are higher than the range of human ear are known as ----
Infrasonic waves
Ultrasonic waves
LOOK AT THE AIRPLANE WHAT TERM BELOW BEST DESCRIBES ITS MACH VELOCITY (SPEED).
Subsonic
Infrasonic
Supersonic
Ultrasonic
The sound of the approaching siren of ambulance seems to be
lower-pitched and softer
lower-pitched and louder
higher -pitched and become softer
higher - pitched and growing louder
bending of light that happens when light travels through different mediums (substances)
reflection
refraction
diffusion
Why does this car appears red under a white light?
The car is absorbing the red light and reflecting the blue and green.
The car is reflecting only the red light while absorbing the blue and green.
The car is absorbing the red and green light while reflecting the blue.
The car is absorbing the red, blue and green, but our eyes can only see the red.
This drawing illustrates the ________________________ of a light wave.
refraction
reflection
diffraction
dispersion
In this diagram, which is the angle of incidence?
Angle A
Angle B
Angle C
Angle D
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
What happens to light during total internal reflection?
The light reflects back into the original medium at the same angle.
The light refracts closer to the normal line.
The light refracts farther away from the normal line.
The light reflects at the angle it would have refracted at.
When will total internal reflection occur?
When light travels from a less dense to a more dense medium
When the angle of incidence is smaller than the critical angle
When the angle of incidence is greater than the critical angle
When the light cannot pass through a medium
What type of image is produced by a convex mirror?
enlarged and real
reduced and virtual
enlarged and virtual
reduced and real
An absolute value of magnification M is greater than 1, indicates that ______________________.
the image is diminished
the image is magnified
an image is not formed
the image has the same size as the object
What is the distance of your image from you if you stand 1.5 m in front of a plane mirror?
1.5 m
2.0 m
3.0 m
4.5 m
