When an object speeds up. Unit is m/s/s.

Gravity pushing down on the mass of an object causing weight. Weight is a downward force.

Tendency to resist any change in motion

The law states that an object will stay at rest or continue in a straight line unless an outside force acts on it. It is the same as Inertia.

Force equals mass multiplied by acceleration.

For every action there is an equal and opposite reaction.

How fast an object is moving. It is the distance divided by the time it takes to travel.

Particles with the same charges

Type of stored energy an object has because of its position. A boulder on top of a hill has a lot of potential energy because it could roll down pretty fast at any moment.

A push or pull on one object by another object

Forces not in physical contact with each other- The region of influence around the object is known as a field

A region of magnetic influence where two objects can attract or repel

An electric field where one particle exerts electric force on other charged particles.

Force caused by pulling on a rope, cable or string

The force of attraction between all masses in the universe

An amount of matter similar to weight

A characteristic of an organism that is determined by protein structure & function (ex. hitchhiker's thumb)

Section of DNA that codes for a protein and thus determines a trait

The 4-letter code; always use the chart reading the mRNA strand

Mutations that produce changes in a gene as opposed to changes in whole chromosomes

Genetic differences within a species

Mutation that affects the number or structure of whole chromosomes

A wave is a disturbance that carries energy from place to place.

Electromagnetic Waves

A disturbance that transmits energy through a field

A disturbance that carries energy from one place to another through a medium

In a wave, the number of wave cycles that pass a given point in a given time

The maximum displacement of the medium from the rest position

Unit to measure frequency of a wave, cycles per second

When a wave bounces off a surface that it cannot pass through. This does not change the speed or frequency of the wave, but the wave can be flipped upside down

The bending of a wave as it enters a new medium at an angle. This occurs because one side of the wave moves more slowly than the other side.

The distance between a point on one wave and the same point on the next cycle of the wave

The bending of a wave as it moves around an obstacle or passes through a narrow opening

Analog is a method of transmitting information by a continuous but varying signal

Digital is a method of storing or transmitting information by discrete, non-continuous impulses

An area in a longitudinal wave where the particles of the medium are spread out

An area in a longitudinal wave where the particles of the medium are spaced close together

A wave in which the vibration of the medium is parallel to the direction the wave travels

A wave that causes the medium to vibrate at right angles to the direction in which the wave travels

The material through which a wave travels. This can be a solid, liquid, or gas.

The amount of matter in a given space, or volume

8th Grade CAST Review Flashcards

Student preview

84 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Compression (Elastic)

Back

Pushing force. it can be an upward force.

2.

FLASHCARD QUESTION

Front

Tension (Elastic)

Back

Pulling force

3.

FLASHCARD QUESTION

Front

Unbalanced forces

Back

Change in velocity

4.

FLASHCARD QUESTION

Front

Balanced forces

Back

No Change in velocity

5.

FLASHCARD QUESTION

Front

Velocity

Back

Speed and direction

6.

FLASHCARD QUESTION

Front

Air Resistance

Back

Slows down objects in motion

7.

FLASHCARD QUESTION

Front

Friction

Back

When two surfaces rub against each other slowing down the motion- heat is produced

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