Physics SOL Review

Energy is defined as… Power The ability of motion The ability to do work Force

Energy is defined as… Power The ability of motion The ability to do work Force

The most powerful form of energy is… Nuclear Electromagnetic Mechanical Heat

The most powerful form of energy is… Nuclear Electromagnetic Mechanical Heat

A stretched bow has energy of this type Motion Potential Kinetic Velocity

A stretched bow has energy of this type Motion Potential Kinetic Velocity

Energy is measured in Newtons Meters Watts Joules

Energy is measured in Newtons Meters Watts Joules

Changes in forms of energy (from one type to another) are called Conversions Engines Turbines Conservations

Changes in forms of energy (from one type to another) are called Conversions Engines Turbines Conservations

Kinetic energy depends upon Velocity only Mass only Position Mass and velocity

Kinetic energy depends upon Velocity only Mass only Position Mass and velocity

Moving electric changes produces… Mechanical energy Chemical energy Electromagnetic energy Heat energy

Moving electric changes produces… Mechanical energy Chemical energy Electromagnetic energy Heat energy

Which one has the most kinetic energy? Battleship moving at 50 m/sec Bird flying at 50 m/sec Kite flying at 50 m/sec Wind blowing at 50 m/sec

Which one has the most kinetic energy? Battleship moving at 50 m/sec Bird flying at 50 m/sec Kite flying at 50 m/sec Wind blowing at 50 m/sec

What is not an example of how electricity is transferred? Convection Induction Conduction Friction

What is not an example of how electricity is transferred? Convection Induction Conduction Friction

Power is measured in…. Ohms Volts Amperes Watts

Power is measured in…. Ohms Volts Amperes Watts

The type of energy transfer that DOES require the objects to actually touch. Induction Conduction Radiation

The type of energy transfer that DOES require the objects to actually touch. Induction Conduction Radiation

Which source creates electricity from chemicals? Photocell Battery Thermocouple Lightning

Which source creates electricity from chemicals? Photocell Battery Thermocouple Lightning

True or False. There are three ways that electricity can be transferred.

True or False. There are three ways that electricity can be transferred. Induction- production of an electromotive force or voltage across an electrical conductor due to its dynamic interaction with a magnetic field Conduction-  process by which heat energy is transmitted through collisions between neighboring molecules. Think of a frying pan set over an open camp stove. The fire's heat causes molecules in the pan to vibrate faster, making it hotter. Friction-  the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

Describe how a switch controls a circuit.

Label the source, load, wire, switch, and flow of electrons Label the source, load, wire, switch, and flow of electrons. What type of circuit is this?

Series circuit

What is the difference between “pitch” and “loudness”

What is the difference between “pitch” and “loudness” Pitch- How high or low a sound is Loudness- Volume

Describe how the human ear works.

Describe how the human ear works. Vibrations enter the outer ear Travel down the ear canal Contact the ear drum Which vibrates the small bone in the inner ear Which sends signals to the brain

The magnetic field of a magnet is strongest… At its north pole At its south pole In the middle At both its poles

The magnetic field of a magnet is strongest… At its north pole At its south pole In the middle At both its poles

Materials that are more difficult to magnetize but tend to stay magnetized are called Natural magnets Temporary magnets Permanent magnets Variable magnets

Materials that are more difficult to magnetize but tend to stay magnetized are called Natural magnets Temporary magnets Permanent magnets Variable magnets

A material that does not magnetize is … Iron Cobalt Glass Nickel

A material that does not magnetize is … Iron Cobalt Glass Nickel

True or False. The north pole of a compass needle points to the magnetic north pole of the magnetic field.

True or False. The north pole of a compass needle points to the magnetic north pole of the magnetic field.

Sound travels best in what material? Gas Liquid Solid The material makes no difference

Sound travels best in what material? Gas Liquid Solid The material makes no difference

If a runner travels 50m in 5 sec, his average speed is 50 m/sec 5 sec/m 10 sec/m 10 m/sec

If a runner travels 50m in 5 sec, his average speed is 50 m/sec 5 sec/m 10 sec/m 10 m/sec

To calculate velocity, you need to know the total…. Distance of the motion Time of the motion Distance and time of the motion Distance, time, and direction of the motion

To calculate velocity, you need to know the total…. Distance of the motion Time of the motion Distance and time of the motion Distance, time, and direction of the motion

The change in velocity is called… Acceleration Distance Average velocity Constant speed

The change in velocity is called… Acceleration Distance Average velocity Constant speed

Acceleration can be calculated by Measuring speed and time Dividing distance by time Dividing the change in velocity by the time needed for that change Mass multiplied by velocity

Acceleration can be calculated by Measuring speed and time Dividing distance by time Dividing the change in velocity by the time needed for that change Mass multiplied by velocity

The rate at which an object moves is called Speed Momentum Velocity Acceleration

The rate at which an object moves is called Speed Momentum- the strength or force that something has when it is moving. : the strength or force that allows something to continue or to grow stronger or faster as time passes Velocity-the speed of something in a given direction Acceleration- A change in the velocity of an object. Note: The most familiar kind ofacceleration is a change in the speed of an object. An object that stays at the same speed but changes direction, however, is also being accelerated.

State the first law of motion (Newton’s first law)

State the first law of motion (Newton’s first law) Every object in a state of rest or uniform motion remains in that state unless an external force is applied to it. This is called inertia.

State Newton’s second law of motion.

State Newton’s second law of motion. F= ma Force = mass X acceleration This describes the relationship between an object’s mass and the amount of force needed to accelerate the object.

State Newton’s third law of motion.

State Newton’s third law of motion. For every action there is an equal and opposite reaction.