| Work and Energy | Force and Energy | Thermal Effects | Thermal Effects | Thermal Energy Transfer |
|---|---|---|---|---|
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work.
You can do _____ when you apply a force along the direction of motion of an object.
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A force can cause a change in shape or speed or direction of an object.
State one change that a force can cause on an object.
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Solid, Liquid, and Gas
What are the 3 forms that water can exist in ?
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A thermometer.
What is used to measure temperature ?
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Conduction, convection, and radiation.
Thermal energy ( heat ) is transferred in 3 ways, what are they ?
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Change in energy.
What is work done ?
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Any of the following ;
oil, natural gas, coal, or nuclear energy
What are 2 examples of non-renewable sources ?
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Solid : Particles vibrate about fixed positions.
Liquid: Particles vibrate, but can change positions. Gas: Particles move about freely.
Explain the particles in a solid, liquid, and gas.
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The Kelvin scale.
In scientific work, temperatures are often measured using the what ?
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wood, plastic, glass, and wool.
What are 4 examples of poor conductors ( insulators ) ?
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What are the units for work done, force, and distance travelled?
Work Done = in joules Force = in Newtons Distanced Travelled = in meters
What are the units for work done, force, and distance travelled?
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Any of the following ;
solar, wind, hydroelectric, tidal, geothermal, or wave.
What are 3 examples of renewable sources ?
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The kinetic theory explains how solids, liquids, and gases behave.
What does the kinetic theory explain ?
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Lower fixed point is known as the ice point and the upper fixed point is known as the steam point.
What are lower fixed point and upped fixed point known as ?
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Convection can not happen in solids.
Where does convection not happen in ?
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A box is initially at rest. It weighs 2 kg. The box moves forward for 10 m with a force of 40 N. Find out the work done.
W = F x D W= 40 x 10 W= 400J
A box is initially at rest. It weighs 2 kg. The box moves forward for 10 m with a force of 40 N. Find out the work done.
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Nuclear energy & Geothermal.
What are 2 examples of types of energy that do not depend on Solar Energy ?
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It is an evidence for moving particles.
What is the brownian motion evidence of ?
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C - thinner tube
A - smaller bulb B - thicker glass round bulb C- thinner tube
For a liquid-in-glass thermometer, which of the above would increase the sensitivity? |
They can all travel through vacuum.
Where can the electromagnetic waves all travel through?
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A box is initially at rest. It weighs 2 kg. The box moves forward for 10 m with a force of 40 N. Find the final speed of the object.
Work done = change in energy 400 = 1/2 mv² 400 = 1/2 x 2v² v² = 400 v = 20 m/s
A box is initially at rest. It weighs 2 kg. The box moves forward for 10 m with a force of 40 N. Find the final speed of the object.
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W = F x D
W = 12 x 5 W = 60 J
How much work is done if a force of 12 N moves an object a distance of 5 m ?
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The particles move faster on average.
If a gas is heated up, how does this affect the motion of its particles ?
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Pi / Ti = Pf / Tf
Ti = 27°C = 27 + 273 = 300 K = T initial Tf = 327°C = 327 + 273 = 600 K = T final Pi = 2atm --> 2 / 300 = Pf / 600 Pf = 4atm
Pressure of a gas at 27°C is at 2atm. Calculate pressure when temperature is increased to 327°C?
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All substances or objects emit ( give out ) electromagnetic waves ( EMW ) .
How do night vision cameras work ?
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