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Test your basic knowledge |
Everyday Physics
Start Test
Study First
Subjects
:
science
,
literacy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.
Net force?0 net torque=0
First Law of thermodynamics
ultrasound
The US uses how much of the total world energy consumption?
2. The study of heat and its transformation into mechanical energy
Rotational inertia (moment of inertia)
measurement of pressure
Thermodynamics
Center of gravity (CG)
3. The total force (positive and negative) acting upon an object
Net force
pressure at depth h
definition of Bernoulii's equation
Total momentum before collision
4. 10 m/s^2
Fluid force
period of a pendulum T of length L
Heat capacity equation
Acceleration due to gravity on the earth
5. The level stays the same
Torque
when ice in water melts what happens?
density of lead
Velocity=
6. The energy that flows from one system to another because of their temperature difference.
Heat
Emissive
Net force=0 net torque?0
definition of Bernoulii's equation
7. 1 / period (time)
atmospheric pressure (atm)
Internal energy
Frequency
Momentum
8. 25%
Energy of motion (kinetic energy)
Projectile
Frequency
The US uses how much of the total world energy consumption?
9. Rod with forces applied at opposite ends in the same direction
Convection
Net force?0 net torque=0
when ice in water melts what happens?
variation of pressure with depth
10. 25%
The US uses how much of the total world energy consumption?
Flow through a pipe
Centripedal acceleration=
Engine efficiency
11. F=mass x acceleration
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12. The effectiveness of a material in conducting heat
velocity through a medium
Thermal conductivity
Conservation of energy
Convert Celsius to Kelven
13. New theory that explained behavior at the atomic level
period of a pendulum T of length L
velocity through a medium
Engine efficiency
Quantum mechanics
14. Believed that the natural state of objects was to be at rest
Emissive
period of a pendulum T of length L
Conservation of energy
Aristotle
15. The efficiency with which an object emits thermal radiation. Is a number between 0 and 1. A good emitter has an e close to 1.
Conduction
Emissive
c=3x10^8 m/s
incoming and outgoing flow rate formula
16. Force x lever arm
Why does something move?
Wave speed=
Torque
Net force
17. Rod with forces applied at opposite ends in opposite directions
pressure does what when depth is increased
Physics
amplitude
Net force=0 net torque?0
18. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Why does something move?
mass flow rate formula
Heat
Brahe
19. 9/5T(C)+32
viscosity
Convert Celsius to Fahrenheit
Heat capacity (specific heat)
Condition for stability
20. A tendency for liquids to resist flowing.
Mechanics
Flow through a pipe
Brahe
viscosity
21.
Energy of motion (kinetic energy)
entropy
Second law of thermodynamics
Heat capacity equation
22. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Period
Conduction
Einstein
Flow through a pipe
23. Are wider at the base (which lowers their center of gravity)
Heat capacity (specific heat)
Heat
Buoyant force
Stable structures
24. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
pressure at depth h
viscosity
law of conservation of energy
Brahe
25. Rod with forces applied at opposite ends in the same direction
definition of Bernoulii's equation
Net force?0 net torque=0
Conduction
amplitude
26. Length of a wave
wavelength
frequency of light
density of lead
bernoulli's equation
27. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
mass flow rate formula
volume fluid flow rate
Centripedal acceleration=
28. Wavelength x frequency
entropy
Wave speed=
density of aluminum
Projectile
29. Equals total momentum after collision
Power (watts)
Total momentum before collision
Torque
Galileo
30. 11 -000 kg/m^3
density of lead
Resistance
density of air
Time for an object thrown to reach maximum height
31. Force per unit area
Power (watts)
Second law of thermodynamics
Pressure=
azX
32. Mass x velocity
Momentum
Mechanics
Engine efficiency
entropy
33. 18600 miles/sec
density of water
ultrasound
Photon energy
Speed of light
34. The study of heat and its transformation into mechanical energy
Change in internal energy
Thermodynamics
Einstein
Buoyant force
35. V1 x A1=v2 x A2
Why does something move?
Second law of thermodynamics
Newton
incoming and outgoing flow rate formula
36. You cant get as much out as you put in
Convert Celsius to Fahrenheit
Flow through a pipe
density of water
Engine efficiency cannot be 100%
37. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Conduction
1 BTU
measure of density
pressure does what when depth is increased
38. Decreases
Conservation of energy
Conduction
the pressure of liquids _____ when it goes faster
Momentum
39. Speed of light / wavelength
frequency of light
Weight
density of aluminum
Aristotle
40. Velocity squared / radius
frequency of light
variation of pressure with depth
the pressure of liquids _____ when it goes faster
Centripedal acceleration=
41. Mass x velocity
law of conservation of energy
Momentum
Torque
volume fluid flow rate
42. The sum of the energy of all the molecules in the system
definition of Bernoulii's equation
Wave speed=
Internal energy
density of lead
43. V1 x A1=v2 x A2
measurement of pressure
incoming and outgoing flow rate formula
1 BTU
period of a pendulum T of length L
44. Heat into system - work done by system
Change in internal energy
Condition for stability
Centripedal acceleration=
variation of pressure with depth
45. Pascal (Pa) or pounds per square inch (psi)
Einstein
Quantum mechanics
variation of pressure with depth
measurement of pressure
46. P x u x A
First Law of thermodynamics
mass flow rate formula
Pressure=
Net force=0 net torque?0
47. If the CG is above the edge - the object will not fall
Total momentum before collision
when ice in water melts what happens?
Condition for stability
Brahe
48. An object that is thrown or struck or shot and then travels under the influence of gravity
Engine efficiency cannot be 100%
Net force?0 net torque=0
Conservation of energy
Projectile
49. Sounds above 20 -000 Hz
Convection
Newton
incoming and outgoing flow rate formula
ultrasound
50. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Photon energy
Heat capacity equation
First Law of thermodynamics
Buoyant force