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| What is the metric unit of length? |
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Definition
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| What is the metric unit for mass? |
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Definition
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| What is the metric unit for weight? |
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Definition
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| What is the metric unit for time? |
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Definition
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| What is the metric unit for volume? |
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Definition
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| What is the metric unit for temperature? |
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Definition
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Term
| What is the equation for speed? |
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Definition
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Term
| Velocity can be defined as ______ and ______. |
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Definition
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Term
| What is Newton's second law of motion in equation form? |
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Definition
| acceleration = force/mass |
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Term
| Mass is _______ proportional to weight. |
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Definition
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Term
| If you leave the earth's surface, will your mass change? |
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Definition
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Term
| The two definitions of mass are... |
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Definition
1. the measure of an object's inertia
2. the amount of matter in an object |
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Term
| When determining the net force operating on an object, always ______ forces acting in the same direction and ______ forces acting in opposite directions. |
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Definition
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Term
| What is Newton's third law? |
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Definition
| "Whenever one object exerts a force on another object, the second object exerts an equal and opposite force on the first." |
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Term
| The two forces described in Newton's third law are called the _______ force and the ______ force. |
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Definition
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Term
| The action and reaction forces always occur _______. |
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Definition
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Term
| What's the equation for momentum when direction is being considered? |
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Definition
| momentum = mass X velocity |
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Term
| What are two differences between momentum and inertia? |
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Definition
1. momentum applies only to moving objects, while inertia applies to both moving and static objects.
2. momentum depends on mass and velocity, and inertia depends on mass only. |
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Term
| How much work has been done on an object that has moved but has ended up where it started? |
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Definition
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Term
| State the law of conservation of energy. |
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Definition
| "Energy cannot be created or destroyed; it may be transformed from one form to another, but the total amount of energy never changes." |
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Term
| What is the unit of energy, and what is one of these units equivalent to? |
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Definition
| Joule; one j = one newton x one meter |
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Term
| What is the wavelength of a wave? |
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Definition
| It's the distance between the crest of a wave to the next crest |
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Term
| What is the amplitude of a wave? |
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Definition
| the amplitude is the distance in a measure of units from the rest position |
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Term
| What are two different equations that could be used to find the speed of a wave? |
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Definition
1. wave speed = wave length / period
2. wave speed = wavelength x frequency |
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Term
| what is the range of human hearing? |
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Definition
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Term
| What is the speed of sound in air? |
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Definition
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Term
| What type of wave is a sound wave? |
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Definition
| They are longitudinal waves. The matter through which the sound wave travels compresses and decompresses in the direction of the wave's motion. |
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Term
| What is the difference between loudness and intensity? |
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Definition
| Loudness is a sensation and cannot be measured. Intensity depends on the amplitude of a wave and is measured with decibels. |
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Term
| Describe the behavior of like and unlike charges. |
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Definition
| Like charges repel and unlike charges attract |
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Term
| What is electric potential? |
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Definition
| the amount of electric potential energy per unit charged in a particle. aka voltage |
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Term
| What is electric potential energy? |
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Definition
| the energy a particle possesses due to the location in an electric field |
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Term
| What is the unit of electric potential? |
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Definition
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Term
| What is the unit of electric charge? |
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Definition
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Term
| Write Ohm's Law in all three possible forms. |
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Definition
1. current = voltage / resistance
2. voltage = current x resistance
3. resistance = voltage / current |
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Term
| Describe the differences between series and parallel circuits |
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Definition
| In a parallel circuit, the same voltage is applied to each device and each device completes the circuit independently of the others. In a series circuit, electric devices are connected in a row so that the same current flows through each voltage. |
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