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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. You can't get more work out than the energy you put in
The US uses how much of the total world energy consumption?
Conservation of energy
volume fluid flow rate
volume fluid flow rate formula
2. Change in velocity / time
Acceleration
velocity through a medium
law of conservation of energy
Newton
3. Heat is transferred directly through a material with no bulk movement of material
Acceleration due to gravity on the earth
Conduction
period p of a mass m oscillating on a horizontal spring of force constant k
Convert Celsius to Fahrenheit
4. Force per unit area
Pressure=
Acceleration due to gravity on the earth
measure of density
Distance traveled
5. Decreases
Rotational inertia (moment of inertia)
Emissive
measure of density
the pressure of liquids _____ when it goes faster
6. A disturbance that moves through something
wave
wavelength
when ice in water melts what happens?
Stable structures
7. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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8. It increases
Net force?0 net torque=0
Stable
pressure does what when depth is increased
Mechanics
9. Sounds above 20 -000 Hz
Aristotle
Rotational inertia (moment of inertia)
ultrasound
Present velocity
10. 100 -000 n/m^2
Net force=0 net torque?0
Rotational inertia (moment of inertia)
pressure at depth h
atmospheric pressure (atm)
11. 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.
the pressure of liquids _____ when it goes faster
Net force
Emissive
density of lead
12. The force that brings a system back to equilibrium
restoring force
Engine efficiency cannot be 100%
Internal energy
when ice in water melts what happens?
13. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Buoyant force
1 BTU
Pressure=
amplitude
14. Speed of light / wavelength
Flow through a pipe
frequency of light
Present velocity
Aristotle
15. Why things move
Mechanics
Heat
Momentum
Frequency
16. Length of a wave
Conservation of energy
static fluid formula
Total momentum before collision
wavelength
17. Heat into system - work done by system
wavelength
Change in internal energy
Heat capacity equation
Acceleration due to gravity on the earth
18. Velocity squared / radius
Heat
Centripedal acceleration=
Convert Celsius to Kelven
Total momentum before collision
19. It increases
mass flow rate formula
pressure does what when depth is increased
Net force
Second law of thermodynamics
20. A tendency for liquids to resist flowing.
Resistance
definition of Bernoulii's equation
Centripedal acceleration=
viscosity
21. Number density x temperature
Acceleration due to gravity on the earth
The US uses how much of the total world energy consumption?
restoring force
pressure depends on
22. V1 x A1=v2 x A2
Conduction
Net force=0 net torque?0
Brahe
incoming and outgoing flow rate formula
23. Kg/m^3
frequency of light
Period
Projectile
measure of density
24. Pressure x area
Fluid force
Momentum
density of aluminum
Convert Fahrenheit to Celsius
25. 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)
Acceleration due to gravity on the earth
Heat
Buoyant force
26. How much torque it takes to get an object rotating
Projectile
Rotational inertia (moment of inertia)
Change in internal energy
wave
27. Initial velocity = acceleration x time
Convert Celsius to Kelven
Present velocity
period of a pendulum T of length L
law of conservation of energy
28. Sounds below 30 Hz
wavelength
Fluid force
Newton
infrasound
29. 9/5T(C)+32
Speed of light
Convert Celsius to Fahrenheit
ultrasound
Change in internal energy
30. Initial velocity = acceleration x time
Present velocity
bernoulli's equation
restoring force
Resistance
31. Mass x gravity
Galileo
Weight
Engine efficiency
static fluid formula
32. Voltage / current
Resistance
Velocity=
wave
Conduction
33. Number density x temperature
Net force=0 net torque?0
pressure depends on
Acceleration due to gravity on the earth
density of lead
34. P(P2-P1)D^4/128Ln n=fluid's viscosity
Torque
Thermal conductivity
Internal energy
Flow through a pipe
35. T^4
density of lead
Internal energy
Thermal radiation
Radiation
36. The sum of the energy of all the molecules in the system
volume fluid flow rate formula
Internal energy
Net force?0 net torque=0
Newton's Second Law
37. Force per unit area
Internal energy
Pressure=
continuity
1 BTU
38. The heat transfer by electromagnetic waves - thermal light waves
Torque
Net force?0 net torque=0
Radiation
Acceleration due to gravity on the earth
39. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Quantum mechanics
Brahe
Convection
pressure does what when depth is increased
40. The effectiveness of a material in conducting heat
Convection
Equilibrium
Present velocity
Thermal conductivity
41. Sounds below 30 Hz
Newton's Second Law
Energy of motion (kinetic energy)
continuity
infrasound
42. Fbottom-Ftop=mg=(density x vol) x g
density of air
Heat
variation of pressure with depth
Conservation of energy
43. Maximum displacement from equilibrium
Projectile
amplitude
Center of gravity (CG)
Wave speed=
44. The energy that flows from one system to another because of their temperature difference.
wave
Net force
Torque
Heat
45. Hf
Conduction
Acceleration
Photon energy
Convection
46. Net force=0 net torque=0
Equilibrium
volume fluid flow rate
Conduction
amplitude
47. Because nothing stops it
Wavelength
Why does something move?
period p of a mass m oscillating on a horizontal spring of force constant k
Centripedal acceleration=
48. T(C) +273
c=3x10^8 m/s
velocity through a medium
Thermal conductivity
Convert Celsius to Kelven
49. The combination of force and point of application
Torque
pressure at depth h
Center of gravity (CG)
bernoulli's equation
50. Mass x gravity
Weight
Fluid force
pressure at depth h
Net force=0 net torque?0