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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. V x A= constant
Velocity=
continuity
infrasound
Wave speed=
2. Believed that the natural state of objects was to be at rest
Acceleration due to gravity on the earth
period of a pendulum T of length L
Aristotle
variation of pressure with depth
3. P(P2-P1)D^4/128Ln n=fluid's viscosity
Conservation of energy
measure of density
Brahe
Flow through a pipe
4. Equals total momentum after collision
velocity through a medium
Heat
Einstein
Total momentum before collision
5. 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.
1 BTU
Emissive
viscosity
Mechanics
6. 2 -700 kg/m^3
Power (watts)
Resistance
Frequency
density of aluminum
7. V x A= constant
Fluid force
Momentum
amplitude
continuity
8. Maximum displacement from equilibrium
Net force=0 net torque?0
Time for an object thrown to reach maximum height
amplitude
Energy of motion (kinetic energy)
9. A disturbance that propagates through a medium
definition of Bernoulii's equation
continuity
Galileo
mechanical wave
10. 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).
Physics
Total momentum before collision
Energy of motion (kinetic energy)
1 BTU
11. It increases
Present velocity
Buoyant force
the pressure of liquids _____ when it goes faster
pressure does what when depth is increased
12. Mass x gravity
viscosity
Velocity required for an object to reach height h
Weight
Stable
13. T(C) +273
definition of Bernoulii's equation
Time for an object thrown to reach maximum height
law of conservation of energy
Convert Celsius to Kelven
14. The force that brings a system back to equilibrium
wave
Power (watts)
restoring force
Radiation
15. P x u x A
mass flow rate formula
Stable
volume fluid flow rate formula
period of a pendulum T of length L
16. The center of an object
Center of gravity (CG)
Newton
Thermal radiation
Fluid force
17. Heat is carried from place to place by the bulk movement of either liquids or gasses
density of water
Convection
Change in internal energy
Acceleration due to gravity on the earth
18. Force per unit area
Convert Celsius to Fahrenheit
infrasound
Pressure=
measurement of pressure
19. A disturbance that moves through something
Acceleration due to gravity on the earth
wave
Photon energy
Pressure=
20. 25%
Why does something move?
mass flow rate formula
definition of Bernoulii's equation
The US uses how much of the total world energy consumption?
21. Heat Q= mass of sample x specific heat x temp change
Heat capacity equation
Present velocity
Projectile
Net force=0 net torque?0
22. The total force (positive and negative) acting upon an object
Resistance
law of conservation of energy
Fluid force
Net force
23. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Kepler
Equilibrium
Frequency
Total momentum before collision
24. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Center of gravity (CG)
variation of pressure with depth
Second law of thermodynamics
Acceleration due to gravity on the earth
25. Hf
variation of pressure with depth
Quantum mechanics
Net force=0 net torque?0
Photon energy
26. Force x lever arm
Brahe
Flow through a pipe
Rotational inertia (moment of inertia)
Torque
27. As the speed of a moving fluid increases - the pressure within the fluid decreases
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28. Rod with forces applied at opposite ends in the same direction
Net force?0 net torque=0
Heat capacity (specific heat)
Net force
Velocity=
29. Time required to complete one cycle
Period
Heat
volume fluid flow rate
Kepler
30. Current x resistance
restoring force
First Law of thermodynamics
First Law of thermodynamics
Voltage
31. Pascal (Pa) or pounds per square inch (psi)
Einstein
Total momentum before collision
measurement of pressure
Rotational inertia (moment of inertia)
32.
Distance traveled
wave
the pressure of liquids _____ when it goes faster
wave
33. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Radiation
Photon energy
Brahe
Einstein
34. Length of a wave
velocity through a medium
wavelength
density of lead
Second law of thermodynamics
35. Mass x specific heat x temperature change
entropy
density of water
Thermal radiation
Heat
36. Wavelength x frequency
Stable
Wave speed=
volume fluid flow rate formula
First Law of thermodynamics
37. 1 / period (time)
Frequency
variation of pressure with depth
Center of gravity (CG)
bernoulli's equation
38. The change in internal energy= the heat absorbed- the work done
amplitude
Thermodynamics
law of conservation of energy
atmospheric pressure (atm)
39. 1 -000 kg/m^3
density of water
Conduction
Voltage
Heat
40. Work done / heat in
Engine efficiency
period p of a mass m oscillating on a horizontal spring of force constant k
law of conservation of energy
static fluid formula
41. C / f
Speed of light
c=3x10^8 m/s
Why does something move?
Wavelength
42. 1 / period (time)
definition of Bernoulii's equation
Frequency
Pressure=
order of states of matter stronger to lesser forces between atoms
43. T=2p square root m/k frequency= square root k/m;/2p
period p of a mass m oscillating on a horizontal spring of force constant k
volume fluid flow rate
Why does something move?
static fluid formula
44. Because nothing stops it
Why does something move?
Distance traveled
measurement of pressure
Second law of thermodynamics
45. Z+n
Center of gravity (CG)
azX
Convert Fahrenheit to Celsius
Energy of motion (kinetic energy)
46. Initial velocity= the square root of 2gh
Velocity required for an object to reach height h
Emissive
Resistance
density of water
47. P + density x g h
Newton's Second Law
Energy of motion (kinetic energy)
pressure at depth h
Velocity=
48. Mass x velocity
Momentum
pressure at depth h
ultrasound
wave
49. The total disorder of an object
Wavelength
entropy
measure of density
Buoyant force
50. The level stays the same
mechanical wave
when ice in water melts what happens?
order of states of matter stronger to lesser forces between atoms
ultrasound