TEST_DE_Phys_Unit3.2-3.5

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Vocabulary: What unit is used to measure energy.

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Draggable item		Corresponding Item
kinetic energy		This law states that energy can change form or be transferred but it cannot be destroyed
thermal energy		energy stored due to position in a gravitational field
Law of conservation of energy		the energy an object has due to its motion
gravitational potential energy		energy stored due to position or configuration
chemical potential energy		energy in the form of heat
potential energy		amount of chemical energy stored in a substance

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Suppose the initial kinetic energy and final potential energy in an experiment are both zero. What can you conclude?

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What energy transformation occurs first when a compressed spring is released?

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A rubber ball is dropped and bounces back up after striking the ground. After the ball is released, when do the highest levels of kinetic energy occur? When do the highest levels of potential energy occur?

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The acceleration due to gravity on the moon is approximately 1.62 m/s . An astronaut shifts the position of a 3.00- kg rock from 1.200 m to 1.700 m above the moon's surface. What is the change in the rock's gravitational potential energy?

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When the brakes are applied in a moving car, the car's kinetic energy

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A student is building a model roller coaster. The car rolls down from a standing start at the top of the first hill, which is 2 m high. The car fails to make it up to the top of the second hill, which is 2.1 m high. Ignoring friction and air resistance, which is MOST LIKELY the source of the problem?

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_______ energy is described as the total potential energies and kinetic energies of the molecules of an object?

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_______ is defined as the transfer of thermal energy through processes such as radiation, convection, or conduction.

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A pie is cooked in an oven. When the pie is left out on a countertop to cool, it will eventually reach a state of ________ with its surroundings.

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Thermodynamics primarily involves the study of ________.

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Which law of thermodynamics states that all processes stop at a temperature of absolute zero?

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In an open system, which of the following can be exchanged with the surroundings?

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In an isolated system, which of the following can be exchanged with the surroundings?

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Entropy is best defined as

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_______ law states that the electric force between charges is directly proportional to the amount of charge and inversely proportional to the distance between the charges.

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Draggable item		Corresponding Item
magnetic field		a set of lines that defines the motion of charged particles near each other
electromagnetism		a set of forces due to stationary or moving electric charges
photoelectric effect		describes generating an electric current when a bar magnet is moved into or out of a wire coil
electric field		a set of lines that defines the motion of charged particles near a magnet
induction		current flowing through a substance when light hits its surface, due to electrons in the surface absorbing the light's energy and breaking free

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A measure of the electrical potential difference between two points is defined as _______ .

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When electricity flows in a wire, what is created around the wire?

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What types of properties does light have?

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The forces between ________ are examples of electric forces.

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What is the term for a packet of light?

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Draggable item		Corresponding Item
semiconductor		a material that allows electricity, heat or sound to pass through it easily
conductor		the flow of electric charge in a circuit
insulator		a material that does not readily conduct electricity or heat
current		a material that has a conductivity that is between that of an insulator and a conductor
superconductor		a material that conducts electricity with zero resistance, usually at very low temperatures

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Silicon is often used as a what?

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Vocabulary: What unit is used to measure energy.

Suppose the initial kinetic energy and final potential energy in an experiment are both zero. What can you conclude?

What energy transformation occurs first when a compressed spring is released?

A rubber ball is dropped and bounces back up after striking the ground. After the ball is released, when do the highest levels of kinetic energy occur? When do the highest levels of potential energy occur?

The acceleration due to gravity on the moon is approximately 1.62 m/s . An astronaut shifts the position of a 3.00- kg rock from 1.200 m to 1.700 m above the moon's surface. What is the change in the rock's gravitational potential energy?

When the brakes are applied in a moving car, the car's kinetic energy

A pie is cooked in an oven. When the pie is left out on a countertop to cool, it will eventually reach a state of ________ with its surroundings.

Thermodynamics primarily involves the study of ________.

Which law of thermodynamics states that all processes stop at a temperature of absolute zero?

In an open system, which of the following can be exchanged with the surroundings?

In an isolated system, which of the following can be exchanged with the surroundings?

Entropy is best defined as

When electricity flows in a wire, what is created around the wire?

What types of properties does light have?

The forces between ________ are examples of electric forces.

What is the term for a packet of light?

Silicon is often used as a what?

Describe the motion of electrons in an insulator.