phys 102
PHYS 102
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Exam (elaborations)
Phy 102 Midterm Exam Question and Answers verified solution 2022.
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---4December 20222022/2023A+
- When the ring is heated the inside diameter of the ring becomes - larger 
 
When the ring is heated the outside diameter of the ring becomes - larger 
 
Thermal energy can consist of - kinetic and potential energy 
 
compared to 1 kg of liquid water at 0 degree C, 1 kg of ice at same temp has - a larger volume and less internal energy 
 
oxygen molecules are more what than hydrogen - massive 
 
hydrogen molecules in comparison to oxygen molecules in gas at same temp - same kinetic energy but mor...
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Exam (elaborations)
Phy 102 Exam 5 Question and Answers verified solution 2022
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---7December 20222022/2023A+
- C. More than 1 second - Suppose the time taken for light to bounce to and fro between the parallel mirrors of a light clock is 1 second, in the frame of reference of the light clock. As seen by another observer moving at high speed at right angles to the to-and-fro motion of the bouncing light, the time taken would be 
 A. also 1 second. 
 B. less than 1 second. 
 C. more than 1 second. 
 
C. c - Your space vehicle is traveling directly away from the earth with a speed of c/2, where c is the s...
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Exam (elaborations)
Phy 102 Exam 3 Question and Answers verified solution 2022
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---7December 20222022/2023A+
- What are the fundamental forces - strong, weak, electromagnetic, and gravity 
 
Strong nuclear force - -a powerful force of attraction that acts only on the neutrons and protons in the nucleus, holding them together 
-electric repulsion of p+ strains nucleus but the (residual) force holds the nucleus together. 
-binds quarks and gluons and anti-quarks together into combinations that similarly have cancelling effects. 
 
Electromagnetic force - -survives to larger distances, but though not very s...
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Exam (elaborations)
PHY 102 Exam 2 verified correct complete solution 2022.
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---9December 20222022/2023A+
- What is projectile motion? - Anything moving through the air under the influence of gravity. 
 
What is a vector? - magnitude and direction 
 
Longer velocity vector equals what? - more speed 
 
What is the "shoot the monkey"? - If you aim a gun directly below a monkey and shoot, the rate the monkey and bullet fall will be the same. meaning you will hit the monkey. 
 
Horizontal and vertical motions are? - independent 
 
What is the only force acting on projectiles? 
A)Friction 
B)Gravity - B)...
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Exam (elaborations)
Phy 102 Exam 2 Question and Answers verified solution 2022
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---5December 20222022/2023A+
- The SI units of work are - Joules 
 
An elevator lifts a person from the 1st floor to the 4th floor in 30s. If the power output of the elevator is 5800W, what is the work done by the elevator - 174,000 J 
 
A 75 kg man climbs the stairs to the fifth floor of a building, a total height of 16 m. His potential energy has increased by approximately - 12000 J 
 
A ball rolling down an incline has its maximum kinetic energy at - the bottom 
 
The power required to exert 64N of force over a distance of...
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Exam (elaborations)
PHY 102 Exam 4 Question and Answers complete solution 2022
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---7December 20222022/2023A+
- Charge flows into a - closed circuit 
 
P = - IV 
 
V = - IR 
 
On some early automobiles both headlights went out when one bulb burned out. The headlights must have been connected in - a series circuit 
 
Current is measured in - ampere (amps) 
 
The power dissipated in each of two light bulbs is the same. The potential across light bulb A is twice that of light bulb B. If the resistance of light bulb B is R, what is the resistance of light bulb A? - 4R 
 
The same potential difference is measu...
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Exam (elaborations)
PHY 102 Exam 1 verified latest 2022 solution.
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---5December 20222022/2023A+
- You would have the largest mass of gold if it weighed 1 N on the - Moon 
 
A kilogram is a measure of an object's - Mass 
 
Where is your weight greater: on Earth or on the Moon? How about your mass? - Your weight is greater on Earth than on the Moon. Your mass is the same in both locations, or in any location. 
 
An object that has twice as much mass as another object also has twice as much - inertia 
 
measure of how much inertia an object has - mass 
 
While a crate rests on a horizontal flo...
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Exam (elaborations)
PHY 102 Final Exam complete latest solution 2022.
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---15December 20222022/2023A+
- What is the speed of light? - Light can travel enormous distances under short periods of time. It is faster than any other phenomenon. It takes about 8 minutes for light to travel from the Sun to Earth. The speed of light in a vacuum is c=3x10^8 m/s. 
 
Why is light such an important tool for astronomers? - Because light is how we learn about distant objects without travelling there. It is also a measuring took of astronomy. Light is a wave and a particle. 
 
How are different kinds of light wav...
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