Compliments of Patrick HaneyHorn High SchoolMesquite ISD
Mesquite, Texas
Name: ______
Physics TAKS Review
Many of the physics problems that you will encounter on the TAKS test will be calculations that will require the use of your formula chart.
Here are some helpful hints for solving these types of problems:
Solve the following problems by calculating speed, acceleration, momentum, force, energy or power.
The Law of Inertia
The Law of Inertia (Newton’s 1st Law) states:
An object will stay at a constant velocity until acted on by a net force.
Another way to say it is:
If an object is moving, it will keep moving in the same direction until something pushes or pulls on it, OR if it is still, it will stay still until something pushes or pulls on it.
More ______means More Inertia
(The bigger an object is, the harder it is to move it.)
The Law of Action and Reaction
The Law of Action-Reaction (Newton’s 3rd Law) states:
For every action, there is an equal and opposite reaction.
Mechanical Advantage and Efficiency
A ______is a device that makes work easier.
No machine is 100 % Efficient.
Energy is always wasted when a machine does work.
This is because there is always ______.
Friction generates ______(thermal energy).
The Law of Conservation of Energy
The Law of Conservation of Energy states:
Energy cannot be ______or ______.
(Energy can be converted from one form of energy to another,
but energy never just appears or disappears.)
ALL living things store energy in the form of ______energy
Plants convert ______energy from the sun into ______energy.
When energy is lost, it is often lost in the form of ______.
(thermal energy)
Heat Transfer
______is the transfer of heat by the direct contact of particles.
______transmit heat by the process of conduction.
______is the transfer of heat through a fluid.
Fluids transfer heat by convection because they can ______.
The Sun transfers heat in the form of ______.
(This is also how microwave ovens transfer heat)
Insulators ______heat flow.
This keeps heat inside hot objects and away from cold objects.
Effect / Amount of Energy per Second (terajoules)Solar radiation reaching Earth / 173,410
Radiation reflected back into space / 52,000
Radiation heating atmosphere, landmasses, and oceans / 81,000
Radiation producing winds and ocean currents / 370
Radiation used in photosynthesis / 40
Radiation resulting in evaporation of water / ?
Container / Initial Temperature (oC) / Final Temperature (oC)
P / 90 / 83
Q / 90 / 76
Substance / Specific Heat [J/g•oC]
Water / 4.184
Wood / 1.760
Carbon (graphite) / 0.710
Glass / 0.664
Iron / 0.450
Waves
Properties of Waves: