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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. Speed of light / wavelength
Conduction
frequency of light
Buoyant force
Radiation
2. Current x voltage energy/time (joules per second)
Thermodynamics
Period
Conduction
Power (watts)
3. 1 -000 kg/m^3
density of water
Net force
measurement of pressure
Newton
4. 10 m/s^2
Conservation of energy
Radiation
Acceleration due to gravity on the earth
Engine efficiency
5. Distance traveled / time
Aristotle
Velocity required for an object to reach height h
Velocity=
Radiation
6. The level stays the same
Photon energy
Frequency
when ice in water melts what happens?
Fluid force
7. The sum of the energy of all the molecules in the system
definition of Bernoulii's equation
Present velocity
Internal energy
Convert Celsius to Kelven
8. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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9. As the speed of a moving fluid increases - the pressure within the fluid decreases
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10. A disturbance that propagates through a medium
Heat
mechanical wave
Velocity=
Projectile
11. Not easy to knock over
Convection
Aristotle
Stable
law of conservation of energy
12. V x A= constant
amplitude
pressure does what when depth is increased
order of states of matter stronger to lesser forces between atoms
continuity
13. P + density x g h
bernoulli's equation
pressure at depth h
Momentum
Power (watts)
14. If the CG is above the edge - the object will not fall
atmospheric pressure (atm)
Condition for stability
Pressure=
volume fluid flow rate
15. The center of an object
Weight
Conduction
Center of gravity (CG)
Rotational inertia (moment of inertia)
16. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Newton
Second law of thermodynamics
viscosity
variation of pressure with depth
17. A tendency for liquids to resist flowing.
Change in internal energy
viscosity
Voltage
volume fluid flow rate
18. 2 -700 kg/m^3
wave
density of aluminum
Velocity required for an object to reach height h
1 BTU
19. Because nothing stops it
Centripedal acceleration=
Physics
Why does something move?
Flow through a pipe
20. Force per unit area
Thermal radiation
variation of pressure with depth
definition of Bernoulii's equation
Pressure=
21. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Buoyant force
density of aluminum
Stable
Energy of motion (kinetic energy)
22. It increases
Why does something move?
pressure does what when depth is increased
atmospheric pressure (atm)
Speed of light
23. V x A= constant
Present velocity
static fluid formula
pressure depends on
continuity
24. The force that brings a system back to equilibrium
velocity through a medium
restoring force
density of air
Thermal conductivity
25. Fbottom=Ftop+mg where mg is the weight of the volume
period of a pendulum T of length L
period of a pendulum T of length L
static fluid formula
Engine efficiency
26. 9/5T(C)+32
First Law of thermodynamics
Heat capacity equation
Convert Celsius to Fahrenheit
Heat
27. Wavelength x frequency
Conservation of energy
Heat capacity (specific heat)
definition of Bernoulii's equation
Wave speed=
28. Work done / heat in
Engine efficiency
Conservation of energy
infrasound
mass flow rate formula
29. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Convection
when ice in water melts what happens?
Physics
1 BTU
30. If the CG is above the edge - the object will not fall
density of lead
measure of density
Condition for stability
Physics
31. Equals total momentum after collision
Fluid force
density of lead
Total momentum before collision
Engine efficiency cannot be 100%
32. Believed that the natural state of objects was to be at rest
c=3x10^8 m/s
Aristotle
Convert Celsius to Fahrenheit
Energy of motion (kinetic energy)
33. The heat transfer by electromagnetic waves - thermal light waves
Heat capacity (specific heat)
Radiation
Heat
azX
34. V1 x A1=v2 x A2
incoming and outgoing flow rate formula
Einstein
Total momentum before collision
Period
35.
Radiation
Distance traveled
restoring force
ultrasound
36. 1 -000 kg/m^3
Projectile
density of water
Resistance
Net force
37. 11 -000 kg/m^3
density of lead
Total momentum before collision
Aristotle
Stable structures
38. Number density x temperature
pressure does what when depth is increased
pressure depends on
Time for an object thrown to reach maximum height
incoming and outgoing flow rate formula
39. Are wider at the base (which lowers their center of gravity)
Stable structures
Emissive
bernoulli's equation
Pressure=
40. 25%
Fluid force
Acceleration
Quantum mechanics
The US uses how much of the total world energy consumption?
41. Rod with forces applied at opposite ends in opposite directions
measurement of pressure
Acceleration due to gravity on the earth
Velocity required for an object to reach height h
Net force=0 net torque?0
42. T=2p square root m/k frequency= square root k/m;/2p
Conduction
Power (watts)
period p of a mass m oscillating on a horizontal spring of force constant k
Net force=0 net torque?0
43. 2p x square root L/g
Thermal conductivity
period of a pendulum T of length L
volume fluid flow rate formula
Newton
44. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
velocity through a medium
Quantum mechanics
pressure depends on
Brahe
45. Mass x velocity
Weight
Momentum
Time for an object thrown to reach maximum height
Einstein
46. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Centripedal acceleration=
Kepler
Wavelength
azX
47. Kg/m^3
measurement of pressure
Conservation of energy
measure of density
Torque
48. Mass x gravity
Acceleration due to gravity on the earth
Engine efficiency
Weight
Torque
49. Time required to complete one cycle
Mechanics
Convert Celsius to Kelven
Velocity=
Period
50. Number density x temperature
Thermal conductivity
Weight
pressure depends on
Wavelength