Essential Physics Practice Exam
Take this quiz to help you prepare for your final. You will want a calculator and your equation list from your review handy. I will not see the results of your quiz unless you print out or email me the completion certificate. Do this if you want some bonus points! (email: rachael. [email protected] Org)
- 1.All Energy adheres to the Law of Conervation of Energy. Why is a light bulb not 100% efficient?
- A.
New light bulbs are 100% efficient
- B.
All energy transfers lose energy in the form of heat
- C.
Tungsten wire in light bulbs are weak
- D.
Of all energy transfers, light bulbs are least efficient
- 2.What is the potential energy of a 80 kg tourist at the top of a building that is 400 m high?
- A.
9.8 J
- B.
320000 J
- C.
32000 J
- D.
313600 J
- 3.Energy produced by the sun is
- A.
Nuclear
- B.
Chemical
- C.
Electrical
- D.
Mechanical
- 4.If the velocity of an object is 1m/s, then increases to 2 m/s, what will happen to the kinetic energy of the object?
- A.
It is reduced by 2
- B.
It stays the same
- C.
It will double
- D.
It will be multiplied by 4
- 5.Energy is measured in
- A.
Newtons
- B.
Amps
- C.
Joules
- D.
Kilograms
- 6.Ultraviolet light is an example of
- A.
Heat energy
- B.
Electromagnetic energy
- C.
Potential energy
- D.
Electrical energy
- 7.A magic turtle has a mass of 47kg and can run 31 m/s. What is his kinetic energy?
- A.
22583.5 J
- B.
68479 J
- C.
1739 J
- D.
34239.5 J
- 8.Pedaling a bike is an example of
- A.
Potential energy
- B.
Thermal energy
- C.
Mechanical energy
- D.
Heat energy
- 9.When you drag your book across a table, friction will convert
- A.
Kinetic energy to potential energy
- B.
Kinetic energy to thermal energy
- C.
Potential energy to wavelengths
- D.
Potential energy to kinetic energy
- 10.
![In the energy transfer diagram of a battery and a light bulb, - ProProfs]( "In the energy transfer diagram of a battery and a light bulb,")
In the energy transfer diagram of a battery and a light bulb,- A.
Heat energy is transferred to chemical energy
- B.
Chemical energy is transferred to mechanical energy
- C.
Electrical energy is transferred to mechanical energy
- D.
Electrical energy is transferred to light (electromagnetic) energy
- 11.
![Point A represents matter at a solid. What phase change is happening at point B? - ProProfs]( "Point A represents matter at a solid. What phase change is happening at point B?")
Point A represents matter at a solid. What phase change is happening at point B?- A.
Freezing
- B.
Melting
- C.
Sublimation
- D.
Vaporization
- 12.
![Point C represents the melting point of a substance. What would Point E represent? - ProProfs]( "Point C represents the melting point of a substance. What would Point E represent?")
Point C represents the melting point of a substance. What would Point E represent?- A.
Freezing
- B.
Melting
- C.
Sublimation
- D.
Vaporization
- 13.Which one of the following is a conductor?
- A.
Straw
- B.
Metal
- C.
Wool
- D.
Wool
- 14.A charged balloon can pick up small bits of paper, proving that its ____ force is stronger than Earth's gravitational force.
- A.
Voltage
- B.
Magnetic field
- C.
Electrical force
- D.
Current
- 15.The phase of matter with a definite chape and volume is
- A.
Plasma
- B.
Liquid
- C.
Gas
- D.
Solid
- 16.The phase with the most energetic molecules is
- A.
Solid
- B.
Liquid
- C.
Gas
- D.
Absolute zero
- 17.When submimation occurs,
- A.
Solid is converted to gas
- B.
Solid is converted to liquid
- C.
Gas is converted to liquid
- D.
Water melts
- 18.
![Ohms () is the unit of measurement for - ProProfs]( "Ohms () is the unit of measurement for")
Ohms () is the unit of measurement for- A.
Current
- B.
Resistance
- C.
Voltage
- D.
Temperature
- 19.Like charges
- A.
Attract
- B.
Repel
- C.
Balance one another
- 20.
![Which temperature scale does water have a boiling point of 100 and a freezing point of 0 - ProProfs]( "Which temperature scale does water have a boiling point of 100 and a freezing point of 0")
Which temperature scale does water have a boiling point of 100 and a freezing point of 0- A.
Fahrenheit
- B.
Celsius
- C.
Kelvin
- D.
Rankine
- 21.Tension breaker: Pizza is
- A.
Delicious
- B.
Just ok
- C.
Gross
- D.
For sissies
- 22.The way in which energy travels the length of a metal is
- A.
Radiation
- B.
Convection
- C.
Conduction
- D.
Conviction
- 23.The temperature in which particles would not be moving
- A.
32 degrees F
- B.
-273 Kelvin
- C.
0 degrees Celsius
- D.
Absolute Zero
- 24.When using the equation I=V/R, what happens to the current when resistance is doubled?
- A.
The current decreases
- B.
The current increases
- C.
The current stays the same
- D.
The current alternates
- 25.Current is measured using
- A.
Coulombs
- B.
Amps
- C.
Ohms
- D.
Volts
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