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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. The sum of the energy of all the molecules in the system
Internal energy
Radiation
volume fluid flow rate
Centripedal acceleration=
2. Why things move
Mechanics
Thermal conductivity
Photon energy
Why does something move?
3. Wavelength x frequency
Net force
Velocity required for an object to reach height h
Resistance
Wave speed=
4. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
pressure depends on
Second law of thermodynamics
Convection
Momentum
5. P + density x g h
mechanical wave
Period
pressure at depth h
Fluid force
6. Equals total momentum after collision
variation of pressure with depth
Total momentum before collision
wavelength
Net force=0 net torque?0
7. Rod with forces applied at opposite ends in the same direction
Wavelength
infrasound
Conduction
Net force?0 net torque=0
8. ?
when ice in water melts what happens?
frequency of light
c=3x10^8 m/s
mechanical wave
9. 2p x square root L/g
Equilibrium
period of a pendulum T of length L
Heat
period p of a mass m oscillating on a horizontal spring of force constant k
10. Are wider at the base (which lowers their center of gravity)
Equilibrium
Period
Projectile
Stable structures
11. 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.
Galileo
mechanical wave
Present velocity
volume fluid flow rate formula
12.
wave
Buoyant force
Distance traveled
Centripedal acceleration=
13. V1 x A1=v2 x A2
incoming and outgoing flow rate formula
Thermal conductivity
Galileo
Brahe
14. Kg/m^3
measure of density
Buoyant force
volume fluid flow rate
Centripedal acceleration=
15. Net force=0 net torque=0
Why does something move?
Projectile
Equilibrium
volume fluid flow rate formula
16. 1.25 kg/m^3
Buoyant force
pressure does what when depth is increased
Resistance
density of air
17. If the CG is above the edge - the object will not fall
Einstein
density of aluminum
Condition for stability
when ice in water melts what happens?
18. An object that is thrown or struck or shot and then travels under the influence of gravity
Equilibrium
Wavelength
wave
Projectile
19. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Newton
Physics
Engine efficiency cannot be 100%
Radiation
20. 1.25 kg/m^3
Newton's Second Law
density of air
Thermodynamics
Equilibrium
21. How much torque it takes to get an object rotating
Buoyant force
Rotational inertia (moment of inertia)
Acceleration
Frequency
22. A disturbance that moves through something
wave
Internal energy
Brahe
Stable
23. The energy that flows from one system to another because of their temperature difference.
Center of gravity (CG)
atmospheric pressure (atm)
Heat
period of a pendulum T of length L
24. 18600 miles/sec
period of a pendulum T of length L
density of lead
Speed of light
static fluid formula
25. You can't get more work out than the energy you put in
Conservation of energy
Radiation
the pressure of liquids _____ when it goes faster
Physics
26. Believed that the natural state of objects was to be at rest
Present velocity
Wave speed=
First Law of thermodynamics
Aristotle
27. Change in velocity / time
bernoulli's equation
Acceleration
density of air
Conduction
28. Fbottom=Ftop+mg where mg is the weight of the volume
Pressure=
Condition for stability
static fluid formula
Frequency
29. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Momentum
Net force
continuity
Einstein
30. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Heat capacity equation
Frequency
volume fluid flow rate
Galileo
31. How much torque it takes to get an object rotating
Rotational inertia (moment of inertia)
Radiation
Convert Fahrenheit to Celsius
Emissive
32. The study of heat and its transformation into mechanical energy
volume fluid flow rate formula
Thermodynamics
azX
Net force=0 net torque?0
33. The total force (positive and negative) acting upon an object
azX
Velocity=
c=3x10^8 m/s
Net force
34. 9/5T(C)+32
law of conservation of energy
Newton's Second Law
Convert Celsius to Fahrenheit
Resistance
35. 100 -000 n/m^2
Mechanics
Convert Fahrenheit to Celsius
order of states of matter stronger to lesser forces between atoms
atmospheric pressure (atm)
36. Are wider at the base (which lowers their center of gravity)
density of water
Buoyant force
First Law of thermodynamics
Stable structures
37. The energy that flows from one system to another because of their temperature difference.
Distance traveled
Photon energy
volume fluid flow rate formula
Heat
38. Current x voltage energy/time (joules per second)
frequency of light
Power (watts)
Convert Celsius to Fahrenheit
mechanical wave
39. Length of a wave
Velocity=
wavelength
Convert Celsius to Fahrenheit
Heat
40. Fbottom-Ftop=mg=(density x vol) x g
Heat capacity (specific heat)
Einstein
Flow through a pipe
variation of pressure with depth
41. It increases
Change in internal energy
Stable
Period
pressure does what when depth is increased
42. An object that is thrown or struck or shot and then travels under the influence of gravity
Convection
Engine efficiency
Projectile
Acceleration due to gravity on the earth
43. 25%
The US uses how much of the total world energy consumption?
Voltage
density of air
Galileo
44. 10 m/s^2
period of a pendulum T of length L
Period
Acceleration due to gravity on the earth
ultrasound
45. Mass x specific heat x temperature change
Thermal conductivity
Conduction
Stable structures
Heat
46. F=mass x acceleration
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47. Believed that the natural state of objects was to be at rest
pressure does what when depth is increased
Aristotle
Physics
Newton
48. Time required to complete one cycle
volume fluid flow rate formula
Buoyant force
Period
Wavelength
49. If the CG is above the edge - the object will not fall
Internal energy
Condition for stability
Change in internal energy
wavelength
50. Mass x gravity
Energy of motion (kinetic energy)
Weight
Condition for stability
variation of pressure with depth