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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 the CG is above the edge - the object will not fall
Total momentum before collision
Net force=0 net torque?0
Equilibrium
Condition for stability
2. 25%
The US uses how much of the total world energy consumption?
definition of Bernoulii's equation
Rotational inertia (moment of inertia)
Acceleration due to gravity on the earth
3. You can't get more work out than the energy you put in
bernoulli's equation
Aristotle
mechanical wave
Conservation of energy
4. Mass x velocity
Galileo
Why does something move?
Momentum
period of a pendulum T of length L
5. Fbottom-Ftop=mg=(density x vol) x g
Flow through a pipe
Thermal radiation
variation of pressure with depth
Weight
6. Heat Q= mass of sample x specific heat x temp change
density of aluminum
Torque
Momentum
Heat capacity equation
7. The total force (positive and negative) acting upon an object
Pressure=
Net force
Kepler
Stable structures
8. Fbottom=Ftop+mg where mg is the weight of the volume
Torque
Acceleration
Net force=0 net torque?0
static fluid formula
9. Net force=0 net torque=0
Flow through a pipe
Equilibrium
pressure does what when depth is increased
Aristotle
10.
Why does something move?
atmospheric pressure (atm)
Distance traveled
Second law of thermodynamics
11. 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
Net force?0 net torque=0
Frequency
Period
12. 10 m/s^2
Acceleration due to gravity on the earth
period of a pendulum T of length L
Weight
Conservation of energy
13. The change in internal energy= the heat absorbed- the work done
bernoulli's equation
law of conservation of energy
Period
Thermodynamics
14. Speed of light / wavelength
definition of Bernoulii's equation
Resistance
frequency of light
Torque
15. P x u x A
frequency of light
Heat
mass flow rate formula
Frequency
16. Current x resistance
pressure does what when depth is increased
Voltage
amplitude
Radiation
17. The center of an object
azX
pressure depends on
Center of gravity (CG)
variation of pressure with depth
18. 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)
Center of gravity (CG)
continuity
Voltage
19. 5/9 [T(F)-32]
Convert Fahrenheit to Celsius
Newton
Net force=0 net torque?0
continuity
20. If the CG is above the edge - the object will not fall
Convert Celsius to Kelven
Distance traveled
Thermodynamics
Condition for stability
21. A disturbance that moves through something
Wave speed=
bernoulli's equation
wave
Flow through a pipe
22. How much torque it takes to get an object rotating
Conservation of energy
Stable
bernoulli's equation
Rotational inertia (moment of inertia)
23. Mass x gravity
Heat
atmospheric pressure (atm)
Pressure=
Weight
24. 11 -000 kg/m^3
Newton's Second Law
Acceleration
entropy
density of lead
25. The effectiveness of a material in conducting heat
wavelength
pressure depends on
Period
Thermal conductivity
26. 2 -700 kg/m^3
volume fluid flow rate
density of aluminum
Weight
Net force
27. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
continuity
Newton
pressure does what when depth is increased
static fluid formula
28. 1 -000 kg/m^3
Conservation of energy
density of water
Heat capacity equation
Change in internal energy
29. P(P2-P1)D^4/128Ln n=fluid's viscosity
Buoyant force
Center of gravity (CG)
Net force?0 net torque=0
Flow through a pipe
30. New theory that explained behavior at the atomic level
Stable
Quantum mechanics
Convection
law of conservation of energy
31. Kg/m^3
infrasound
measure of density
Buoyant force
Speed of light
32. Distance traveled / time
First Law of thermodynamics
Period
Photon energy
Velocity=
33.
continuity
Distance traveled
Conduction
Wave speed=
34. Time required to complete one cycle
variation of pressure with depth
order of states of matter stronger to lesser forces between atoms
Period
Convert Fahrenheit to Celsius
35. The study of heat and its transformation into mechanical energy
Heat capacity equation
Brahe
Convert Celsius to Kelven
Thermodynamics
36. 100 -000 n/m^2
atmospheric pressure (atm)
definition of Bernoulii's equation
mass flow rate formula
density of air
37. Because nothing stops it
when ice in water melts what happens?
Why does something move?
wavelength
density of lead
38. Z+n
density of water
Change in internal energy
azX
mechanical wave
39. Sounds below 30 Hz
Stable
Energy of motion (kinetic energy)
infrasound
Radiation
40. How much torque it takes to get an object rotating
the pressure of liquids _____ when it goes faster
continuity
Rotational inertia (moment of inertia)
Condition for stability
41. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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42. The sum of the energy of all the molecules in the system
Internal energy
density of aluminum
incoming and outgoing flow rate formula
period p of a mass m oscillating on a horizontal spring of force constant k
43. The total disorder of an object
pressure depends on
Change in internal energy
entropy
Convert Celsius to Kelven
44. Why things move
Wavelength
Mechanics
Torque
Heat capacity (specific heat)
45. T(C) +273
Why does something move?
Convert Celsius to Kelven
Thermodynamics
incoming and outgoing flow rate formula
46. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
volume fluid flow rate
Aristotle
Brahe
the pressure of liquids _____ when it goes faster
47. Rod with forces applied at opposite ends in opposite directions
Heat capacity (specific heat)
Heat
Net force=0 net torque?0
frequency of light
48. The heat needed to raise the temperature of 1 pound of water by 1 degree F
1 BTU
Quantum mechanics
Pressure=
volume fluid flow rate formula
49. The energy that flows from one system to another because of their temperature difference.
Center of gravity (CG)
Acceleration due to gravity on the earth
pressure does what when depth is increased
Heat
50. Believed that the natural state of objects was to be at rest
static fluid formula
Aristotle
Convert Fahrenheit to Celsius
Kepler