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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. Why things move
Newton
Wave speed=
Mechanics
c=3x10^8 m/s
2. 10 m/s^2
Fluid force
Period
Change in internal energy
Acceleration due to gravity on the earth
3. The heat transfer by electromagnetic waves - thermal light waves
Change in internal energy
measure of density
Radiation
c=3x10^8 m/s
4. Mass x specific heat x temperature change
volume fluid flow rate
pressure at depth h
Heat
measure of density
5. Because nothing stops it
Why does something move?
atmospheric pressure (atm)
Centripedal acceleration=
Torque
6. Z+n
azX
Thermodynamics
atmospheric pressure (atm)
Convert Celsius to Fahrenheit
7. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Heat
density of air
frequency of light
volume fluid flow rate formula
8. You cant get as much out as you put in
Radiation
Engine efficiency cannot be 100%
Distance traveled
Internal energy
9. ?
measure of density
Convert Celsius to Kelven
entropy
c=3x10^8 m/s
10. P x u x A
Condition for stability
Engine efficiency
mass flow rate formula
Newton's Second Law
11. The total disorder of an object
Condition for stability
mechanical wave
entropy
Flow through a pipe
12. Decreases
the pressure of liquids _____ when it goes faster
Heat capacity (specific heat)
Internal energy
density of lead
13. Pressure x area
Acceleration due to gravity on the earth
Fluid force
Torque
Why does something move?
14.
density of water
Energy of motion (kinetic energy)
Torque
Physics
15. F=mass x acceleration
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16. Solids - liquids - gases
order of states of matter stronger to lesser forces between atoms
Torque
infrasound
Flow through a pipe
17. Change in velocity / time
Acceleration
velocity through a medium
Equilibrium
viscosity
18. 9/5T(C)+32
Stable structures
Convert Celsius to Fahrenheit
Convert Fahrenheit to Celsius
Change in internal energy
19. How much torque it takes to get an object rotating
Rotational inertia (moment of inertia)
Engine efficiency cannot be 100%
Heat
Engine efficiency cannot be 100%
20. Initial velocity= the square root of 2gh
Velocity required for an object to reach height h
Thermodynamics
variation of pressure with depth
Velocity=
21. A disturbance that propagates through a medium
Pressure=
restoring force
mechanical wave
Pressure=
22. The study of how objects behave (from the very tiny to the very big - and from the beginning of the Universe to its ultimate fate).
Mechanics
Thermal conductivity
Physics
Voltage
23. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Heat capacity (specific heat)
amplitude
wave
Convection
24. New theory that explained behavior at the atomic level
Quantum mechanics
Acceleration
measurement of pressure
Voltage
25. If the CG is above the edge - the object will not fall
density of aluminum
Emissive
Condition for stability
Total momentum before collision
26. As the speed of a moving fluid increases - the pressure within the fluid decreases
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27. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Second law of thermodynamics
1 BTU
Convection
measurement of pressure
28. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
mechanical wave
pressure depends on
azX
Einstein
29. Number density x temperature
Buoyant force
Present velocity
pressure depends on
Centripedal acceleration=
30. Wavelength x frequency
Convection
wave
density of aluminum
Wave speed=
31. Length of a wave
wavelength
atmospheric pressure (atm)
Physics
incoming and outgoing flow rate formula
32. Heat into system - work done by system
Change in internal energy
Period
Condition for stability
Engine efficiency cannot be 100%
33. Current x voltage energy/time (joules per second)
Time for an object thrown to reach maximum height
Power (watts)
Convert Fahrenheit to Celsius
pressure depends on
34. Mass x gravity
Weight
incoming and outgoing flow rate formula
Mechanics
Energy of motion (kinetic energy)
35. Because nothing stops it
the pressure of liquids _____ when it goes faster
Why does something move?
Convert Celsius to Fahrenheit
Quantum mechanics
36. Wavelength x frequency
Wave speed=
Buoyant force
volume fluid flow rate formula
Heat
37. Initial velocity = acceleration x time
Heat capacity equation
Condition for stability
amplitude
Present velocity
38. Are wider at the base (which lowers their center of gravity)
Stable structures
Photon energy
definition of Bernoulii's equation
Speed of light
39. The effectiveness of a material in conducting heat
amplitude
amplitude
Voltage
Thermal conductivity
40. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Momentum
Kepler
Wave speed=
Acceleration
41. C/n
pressure does what when depth is increased
velocity through a medium
Internal energy
Distance traveled
42. Sounds above 20 -000 Hz
Thermal conductivity
ultrasound
density of water
viscosity
43. 1 / period (time)
Momentum
Frequency
azX
pressure does what when depth is increased
44. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
Fluid force
Stable
period of a pendulum T of length L
45. Equals total momentum after collision
Power (watts)
Total momentum before collision
Rotational inertia (moment of inertia)
Newton
46. Mass x velocity
Momentum
Condition for stability
period p of a mass m oscillating on a horizontal spring of force constant k
measurement of pressure
47. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
density of aluminum
Rotational inertia (moment of inertia)
definition of Bernoulii's equation
48. Current x resistance
Thermal conductivity
Voltage
Thermal conductivity
wavelength
49. It increases
frequency of light
the pressure of liquids _____ when it goes faster
law of conservation of energy
pressure does what when depth is increased
50. P(P2-P1)D^4/128Ln n=fluid's viscosity
Net force=0 net torque?0
bernoulli's equation
Energy of motion (kinetic energy)
Flow through a pipe