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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
Mechanics
Acceleration
Quantum mechanics
Center of gravity (CG)
2. The heat needed to raise the temperature of 1 pound of water by 1 degree F
restoring force
Torque
density of lead
1 BTU
3. Number density x temperature
Newton's Second Law
Engine efficiency cannot be 100%
entropy
pressure depends on
4. Current x voltage energy/time (joules per second)
Mechanics
Quantum mechanics
Voltage
Power (watts)
5. It increases
Mechanics
Engine efficiency
Fluid force
pressure does what when depth is increased
6. Solids - liquids - gases
Heat
order of states of matter stronger to lesser forces between atoms
Projectile
Present velocity
7. Heat is transferred directly through a material with no bulk movement of material
Energy of motion (kinetic energy)
Second law of thermodynamics
Conduction
Torque
8. 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.
Newton
Distance traveled
Emissive
Resistance
9. Speed of light / wavelength
frequency of light
First Law of thermodynamics
incoming and outgoing flow rate formula
Galileo
10. Length of a wave
wavelength
when ice in water melts what happens?
Period
Torque
11. The total disorder of an object
restoring force
wavelength
entropy
law of conservation of energy
12. Maximum displacement from equilibrium
density of lead
Energy of motion (kinetic energy)
amplitude
First Law of thermodynamics
13. 2 -700 kg/m^3
Radiation
density of aluminum
density of water
continuity
14. Not easy to knock over
Weight
Heat
infrasound
Stable
15. Weight of displaced water=volume of displaced water in liters x 10 n / liter
static fluid formula
Buoyant force
Newton
Convection
16. Mass x specific heat x temperature change
ultrasound
Momentum
Heat
Convert Fahrenheit to Celsius
17. Fbottom-Ftop=mg=(density x vol) x g
Projectile
pressure depends on
Centripedal acceleration=
variation of pressure with depth
18. If the CG is above the edge - the object will not fall
Newton
when ice in water melts what happens?
Buoyant force
Condition for stability
19. 1.25 kg/m^3
Acceleration due to gravity on the earth
Newton
density of air
Convert Celsius to Kelven
20. The effectiveness of a material in conducting heat
Velocity required for an object to reach height h
Thermal conductivity
when ice in water melts what happens?
Wave speed=
21. Pascal (Pa) or pounds per square inch (psi)
Torque
measurement of pressure
Engine efficiency cannot be 100%
mechanical wave
22. As the speed of a moving fluid increases - the pressure within the fluid decreases
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23. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Wavelength
volume fluid flow rate formula
Engine efficiency cannot be 100%
Convert Celsius to Fahrenheit
24. The total force (positive and negative) acting upon an object
Flow through a pipe
Heat capacity (specific heat)
Net force
Second law of thermodynamics
25. New theory that explained behavior at the atomic level
Convert Fahrenheit to Celsius
Brahe
Flow through a pipe
Quantum mechanics
26. Initial velocity= the square root of 2gh
Present velocity
Frequency
Velocity required for an object to reach height h
atmospheric pressure (atm)
27. Mass x gravity
Weight
volume fluid flow rate
Total momentum before collision
law of conservation of energy
28. Speed of light / wavelength
Flow through a pipe
Acceleration
frequency of light
wavelength
29. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Frequency
Heat capacity equation
Thermal conductivity
Kepler
30. Heat into system - work done by system
Change in internal energy
Condition for stability
amplitude
static fluid formula
31. Initial velocity= the square root of 2gh
Thermal conductivity
Velocity required for an object to reach height h
continuity
azX
32. 2 -700 kg/m^3
density of aluminum
when ice in water melts what happens?
Engine efficiency
volume fluid flow rate
33. The heat transfer by electromagnetic waves - thermal light waves
bernoulli's equation
pressure at depth h
Radiation
density of water
34. You can't get more work out than the energy you put in
Conservation of energy
Photon energy
Voltage
Heat capacity equation
35. Time required to complete one cycle
Period
Pressure=
entropy
The US uses how much of the total world energy consumption?
36. Mass x velocity
pressure does what when depth is increased
Thermal conductivity
Conservation of energy
Momentum
37. Kg/m^3
restoring force
measure of density
Acceleration due to gravity on the earth
period p of a mass m oscillating on a horizontal spring of force constant k
38. Current x resistance
density of water
Voltage
Internal energy
Weight
39. Force per unit area
amplitude
Pressure=
First Law of thermodynamics
Speed of light
40. 1 -000 kg/m^3
density of water
Thermodynamics
order of states of matter stronger to lesser forces between atoms
Centripedal acceleration=
41. How much torque it takes to get an object rotating
definition of Bernoulii's equation
amplitude
Equilibrium
Rotational inertia (moment of inertia)
42. 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).
bernoulli's equation
density of lead
mechanical wave
Physics
43. The energy that flows from one system to another because of their temperature difference.
Heat
Power (watts)
Einstein
Convert Fahrenheit to Celsius
44. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
Present velocity
Kepler
volume fluid flow rate formula
45. Hf
Frequency
Photon energy
Convection
mass flow rate formula
46. You cant get as much out as you put in
Engine efficiency cannot be 100%
Mechanics
Convection
azX
47. 25%
Frequency
incoming and outgoing flow rate formula
The US uses how much of the total world energy consumption?
Weight
48. V x A= constant
Distance traveled
mechanical wave
Heat capacity equation
continuity
49. Change in velocity / time
Total momentum before collision
Momentum
Galileo
Acceleration
50. Time= the square root of 2 x height / acceleration due to gravity
Second law of thermodynamics
wave
volume fluid flow rate
Time for an object thrown to reach maximum height