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Higher Physics ODU
Higher Physics ODU
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1
Below is the velocity time graph of a skydiver. Between what letters are the forces acting on the skydiver unbalanced.
RS
PQ
QR
2
What time does the ball reach maximum height?
2s
1.5s
4s
0s
3
What is the vertical component?
15 ms-1
5 ms-1
11.5 ms-1
9.6 ms-1
4
What is the value of Impulse compared to object 1 and 2.
Object 1 is greater than 2.
The objects have the same impulse.
Object 2 is greater than 1.
5
Gaynemede is 4 times further away from Jupiter than Io. If they have same mass, how much weaker is F
G
.
x16
x2
x8
x4
6
A Muon particle survives for 1.5 μs and travles at 0.98c. If measured by an observer on Earth, it's lifespan will be...
1.5 μs
3 μs
0.75 μs
7
What could object
2
be.
Tennis Ball
Golf Ball
8
What is the displacment time graph for the for the following motion?
Empty choice
Empty choice
Empty choice
9
An observer measures the length of a specraft travelling 0.8c. How does his measurement compare to the captains?
More than Captain.
Less than Captain.
Same
10
What is the corresponding acceleration time graph?
Empty choice
Empty choice
Empty choice
Empty choice
11
The mass of galaxies can be estimated using the recessional velocity.
True
False
12
Which term is used to describe the cause of the expansion of the universe.
Higgs Boson
Dark Matter
Dark Energy
Supernova
13
Where is the tension greatest?
Same at all points
P
R
Q
14
Impulse is equal to ...
Ft
Area under Force x Time graph.
mv-Ft
15
What type of motion is show below?
Stationary ball
Ball thrown horizontally
Ball thrown upwards.
Ball dropped from a height.
16
This phenomena is known as Time Contraction
False
True
17
In a collision the total momentum is conserved and the kinetic energy is not. This collision is ...
Elastic
Inelastic
18
A ball is dropped. If the acceleration of the object is -
9.8ms
-2
then what is the height that it falls from?
1.2m
1.5m
4.9m
0.5m
19
What is the definition of redshift of a galaxy?
Ratio of the speed of light to the recessional velocity of the galaxy.
Change in wavelength divided by the emitted wavelength.
Ratio of the recessional velocity of the galaxy to the speed of light.
Emitted wavelength divided by the change in wavelength.
20
Hubbles Law can estimate the age of the Universe.
True
False
21
What is the change of momentum of this object during the 8 seconds below.
72
12
32
44
22
Two satellites have the same orbital distance from Earth. If one has x2 mass what happens to F
G
?
X2 smaller
X4 bigger
X2 bigger
X4 smaller
23
What Big Bang piece of evidence does this diagram represent?
Hubbles Law
Olbers Paradox
Light Element Abundance
CMBR
24
What are Einstein's two posulates in his Theory of Special Relativity?
The laws of physics are the same in all frames of reference.
Speed of light depends of your frame of reference.
The laws of physics break down close to the speed of light.
Speed of light is a constant in all frames of reference.
