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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. Heat into system - work done by system
Time for an object thrown to reach maximum height
restoring force
Rotational inertia (moment of inertia)
Change in internal energy
2. Why things move
Mechanics
Buoyant force
Engine efficiency cannot be 100%
Physics
3. You can't get more work out than the energy you put in
Center of gravity (CG)
Weight
Velocity=
Conservation of energy
4. The sum of the energy of all the molecules in the system
Acceleration
Radiation
Internal energy
Heat capacity equation
5. Weight of displaced water=volume of displaced water in liters x 10 n / liter
density of lead
1 BTU
Buoyant force
ultrasound
6. Hf
c=3x10^8 m/s
Photon energy
Distance traveled
period p of a mass m oscillating on a horizontal spring of force constant k
7. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
mass flow rate formula
azX
Newton
Second law of thermodynamics
8. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
density of water
Total momentum before collision
when ice in water melts what happens?
9. Speed of light / wavelength
Photon energy
Conservation of energy
frequency of light
Brahe
10. Mass x velocity
density of lead
Momentum
Aristotle
Stable structures
11. 5/9 [T(F)-32]
First Law of thermodynamics
Convert Fahrenheit to Celsius
Conduction
Thermodynamics
12. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Brahe
bernoulli's equation
continuity
period of a pendulum T of length L
13. Current x voltage energy/time (joules per second)
continuity
Center of gravity (CG)
pressure depends on
Power (watts)
14. Length of a wave
variation of pressure with depth
wavelength
Heat capacity (specific heat)
Convert Celsius to Kelven
15. Number density x temperature
Heat
measurement of pressure
pressure depends on
period p of a mass m oscillating on a horizontal spring of force constant k
16. The effectiveness of a material in conducting heat
Emissive
Thermal conductivity
Convert Celsius to Kelven
Net force
17. Rod with forces applied at opposite ends in opposite directions
Flow through a pipe
measure of density
the pressure of liquids _____ when it goes faster
Net force=0 net torque?0
18. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.
Velocity=
the pressure of liquids _____ when it goes faster
First Law of thermodynamics
azX
19. The first to do experimental studies of the laws of motion and was Imprisoned by Pope Urban VIII in 1633 for advocating the Copernican theory - also know as the heliocentric theory - that the earth was a planet revolving around the sun.
Velocity required for an object to reach height h
Galileo
mechanical wave
velocity through a medium
20. V1 x A1=v2 x A2
Heat
pressure does what when depth is increased
incoming and outgoing flow rate formula
Conduction
21.
azX
Distance traveled
Fluid force
Frequency
22. Pascal (Pa) or pounds per square inch (psi)
Newton
measurement of pressure
Power (watts)
period of a pendulum T of length L
23. 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.
Fluid force
Emissive
Heat capacity (specific heat)
measure of density
24. As the speed of a moving fluid increases - the pressure within the fluid decreases
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25. Current x resistance
incoming and outgoing flow rate formula
atmospheric pressure (atm)
order of states of matter stronger to lesser forces between atoms
Voltage
26. You cant get as much out as you put in
Weight
volume fluid flow rate formula
Engine efficiency cannot be 100%
First Law of thermodynamics
27. T=2p square root m/k frequency= square root k/m;/2p
Wavelength
Wave speed=
period p of a mass m oscillating on a horizontal spring of force constant k
Heat
28. 2p x square root L/g
Net force
period of a pendulum T of length L
Thermodynamics
Projectile
29. Rod with forces applied at opposite ends in opposite directions
Convection
Net force=0 net torque?0
volume fluid flow rate
Torque
30. Initial velocity = acceleration x time
measurement of pressure
Present velocity
Photon energy
Convection
31. The combination of force and point of application
Acceleration
Center of gravity (CG)
Torque
restoring force
32. T=2p square root m/k frequency= square root k/m;/2p
restoring force
Power (watts)
density of aluminum
period p of a mass m oscillating on a horizontal spring of force constant k
33. New theory that explained behavior at the atomic level
Energy of motion (kinetic energy)
Quantum mechanics
Heat
Aristotle
34. 2p x square root L/g
Aristotle
period of a pendulum T of length L
Kepler
Convert Celsius to Kelven
35. A tendency for liquids to resist flowing.
Engine efficiency
viscosity
restoring force
Physics
36. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
Convection
Projectile
wavelength
37. The total force (positive and negative) acting upon an object
Net force
static fluid formula
Kepler
Center of gravity (CG)
38. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Present velocity
Einstein
Conduction
bernoulli's equation
39. It increases
pressure does what when depth is increased
Flow through a pipe
Rotational inertia (moment of inertia)
Net force=0 net torque?0
40. The force that brings a system back to equilibrium
restoring force
infrasound
Time for an object thrown to reach maximum height
1 BTU
41. 25%
The US uses how much of the total world energy consumption?
the pressure of liquids _____ when it goes faster
amplitude
Thermal radiation
42. The heat transfer by electromagnetic waves - thermal light waves
Second law of thermodynamics
wave
period p of a mass m oscillating on a horizontal spring of force constant k
Radiation
43.
bernoulli's equation
Total momentum before collision
Fluid force
Energy of motion (kinetic energy)
44. 100 -000 n/m^2
pressure at depth h
Stable
Engine efficiency cannot be 100%
atmospheric pressure (atm)
45. 9/5T(C)+32
viscosity
bernoulli's equation
definition of Bernoulii's equation
Convert Celsius to Fahrenheit
46. Are wider at the base (which lowers their center of gravity)
Heat
Engine efficiency
Emissive
Stable structures
47. The total disorder of an object
Buoyant force
when ice in water melts what happens?
entropy
Newton's Second Law
48. Heat Q= mass of sample x specific heat x temp change
viscosity
Center of gravity (CG)
restoring force
Heat capacity equation
49. Rod with forces applied at opposite ends in the same direction
ultrasound
Net force?0 net torque=0
Newton's Second Law
Change in internal energy
50. 2 -700 kg/m^3
Convert Fahrenheit to Celsius
Center of gravity (CG)
Conduction
density of aluminum