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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. 10 m/s^2
when ice in water melts what happens?
Acceleration due to gravity on the earth
density of aluminum
amplitude
2. Time= the square root of 2 x height / acceleration due to gravity
Heat
viscosity
Time for an object thrown to reach maximum height
Torque
3. Wavelength x frequency
Wave speed=
period p of a mass m oscillating on a horizontal spring of force constant k
Photon energy
Mechanics
4. 2 -700 kg/m^3
ultrasound
Thermal conductivity
c=3x10^8 m/s
density of aluminum
5. Wavelength x frequency
Wave speed=
Change in internal energy
Thermal conductivity
Second law of thermodynamics
6. 11 -000 kg/m^3
Frequency
mass flow rate formula
density of lead
Photon energy
7. T^4
Thermal radiation
Speed of light
Newton
Why does something move?
8. C / f
Wavelength
Internal energy
Buoyant force
frequency of light
9. The study of heat and its transformation into mechanical energy
Photon energy
wave
Fluid force
Thermodynamics
10. You cant get as much out as you put in
Engine efficiency cannot be 100%
viscosity
amplitude
Wave speed=
11. Fbottom=Ftop+mg where mg is the weight of the volume
Centripedal acceleration=
Heat
static fluid formula
Power (watts)
12. The sum of the energy of all the molecules in the system
ultrasound
Projectile
wavelength
Internal energy
13. 1 / period (time)
density of air
Frequency
Acceleration due to gravity on the earth
Equilibrium
14. Mass x velocity
volume fluid flow rate
law of conservation of energy
Momentum
Projectile
15. Speed of light / wavelength
density of water
frequency of light
Thermal radiation
measure of density
16. Pascal (Pa) or pounds per square inch (psi)
period of a pendulum T of length L
Velocity=
Torque
measurement of pressure
17. Because nothing stops it
Kepler
when ice in water melts what happens?
Why does something move?
Kepler
18. Fbottom-Ftop=mg=(density x vol) x g
The US uses how much of the total world energy consumption?
variation of pressure with depth
azX
density of air
19. V1 x A1=v2 x A2
Mechanics
Heat
Thermal radiation
incoming and outgoing flow rate formula
20. As the speed of a moving fluid increases - the pressure within the fluid decreases
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21. The force that brings a system back to equilibrium
Mechanics
restoring force
Net force=0 net torque?0
Kepler
22. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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23. Heat Q= mass of sample x specific heat x temp change
azX
The US uses how much of the total world energy consumption?
Heat capacity equation
Newton's Second Law
24. F=mass x acceleration
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25. A tendency for liquids to resist flowing.
azX
Convert Fahrenheit to Celsius
viscosity
measure of density
26. 25%
Newton's Second Law
static fluid formula
Torque
The US uses how much of the total world energy consumption?
27. The total force (positive and negative) acting upon an object
volume fluid flow rate
Net force
Quantum mechanics
entropy
28. Sounds below 30 Hz
Buoyant force
volume fluid flow rate
Velocity required for an object to reach height h
infrasound
29. Pascal (Pa) or pounds per square inch (psi)
Conduction
infrasound
Total momentum before collision
measurement of pressure
30. Mass x gravity
Radiation
Voltage
Torque
Weight
31. Length of a wave
wavelength
Wave speed=
viscosity
static fluid formula
32. 2p x square root L/g
period of a pendulum T of length L
measure of density
Torque
Wave speed=
33. Maximum displacement from equilibrium
amplitude
volume fluid flow rate formula
Conservation of energy
First Law of thermodynamics
34. You cant get as much out as you put in
Engine efficiency cannot be 100%
period p of a mass m oscillating on a horizontal spring of force constant k
Brahe
Velocity required for an object to reach height h
35. ?
c=3x10^8 m/s
period p of a mass m oscillating on a horizontal spring of force constant k
Thermodynamics
Acceleration
36. The effectiveness of a material in conducting heat
Emissive
Velocity=
Change in internal energy
Thermal conductivity
37. Rod with forces applied at opposite ends in opposite directions
amplitude
Quantum mechanics
Net force=0 net torque?0
Stable structures
38. Current x voltage energy/time (joules per second)
Power (watts)
Change in internal energy
Radiation
Aristotle
39. Pressure x area
Torque
Fluid force
Heat
pressure depends on
40. Voltage / current
period of a pendulum T of length L
Weight
wave
Resistance
41. Weight of displaced water=volume of displaced water in liters x 10 n / liter
pressure does what when depth is increased
Buoyant force
Center of gravity (CG)
Pressure=
42. Rod with forces applied at opposite ends in opposite directions
Aristotle
Net force=0 net torque?0
pressure does what when depth is increased
order of states of matter stronger to lesser forces between atoms
43. 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.
Emissive
Torque
Wavelength
Wavelength
44. Force x lever arm
Torque
Galileo
definition of Bernoulii's equation
Power (watts)
45. Heat into system - work done by system
Rotational inertia (moment of inertia)
Change in internal energy
Net force?0 net torque=0
Momentum
46. The effectiveness of a material in conducting heat
measure of density
Thermal conductivity
definition of Bernoulii's equation
Torque
47. How much torque it takes to get an object rotating
Stable structures
Heat capacity equation
Acceleration due to gravity on the earth
Rotational inertia (moment of inertia)
48. Believed that the natural state of objects was to be at rest
Aristotle
Weight
wavelength
Energy of motion (kinetic energy)
49. Are wider at the base (which lowers their center of gravity)
Voltage
continuity
Stable structures
Weight
50. Rod with forces applied at opposite ends in the same direction
Thermodynamics
Convert Celsius to Fahrenheit
Net force?0 net torque=0
Conservation of energy