Physical Science Final

Vector showing how a speed changes

total distance divided by total time

Speed that does not change

A decrease in speed

Measure length from point A to B with direction

Measurement of how far you traveled

System of objects not moving

the speed of an object at one instant of time

An object's change in position relative to a reference point.

How fast you move; not a vector

Speed in a given direction

a quantity that has both magnitude and direction

force that opposes the motion of objects that move through the air

two forces acting in opposite directions on an object, and equal in size

The force between charged objects

a force associated with charged particles, which has two aspects, electric force and magnetic force

friction that occurs as an object moves through a fluid

A push or pull exerted on an object

A force that opposes motion between two surfaces that are in contact

the force of attraction between all masses in the universe

Energy of Motion

the attraction or repulsion between magnetic poles

an attractive force that acts between all nuclear particles that are extremely close together, such as protons and neutrons in a nucleus

the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth

friction that occurs when an object rolls over a surface

friction that occurs when one solid surface slides over another

Friction that acts on objects that are not moving

the greatest velocity a falling object reaches

Forces that produce a nonzero net force, which changes an object's motion

immaterial creation by universal intelligence for the purpose of uniting intelligence & matter

the initial push or pull of one object on another object

a body remains at rest or in motion with a constant velocity unless acted upon by an external force

the tendency of an object to resist any change in its motion

the amount of matter in an object

The product of an object's mass and velocity

force acting in the opposite direction

Acceleration is produced when a force acts on a mass.

For every action there is an equal and opposite reaction

A measure of the force of gravity on an object

a machine made of more than one simple machine

The fixed point around which a lever pivots

a slanted surface along which a force moves an object to a different elevation

A rigid bar that is free to move around a fixed point

A device that makes work easier

Ratio of the output force exerted by a machine to the input force applied to the machine.

the rate at which work is done

A simple machine that consists of a rope that fits into a groove in a wheel

An inclined plane wrapped around a cylinder

a machine that does work with only one movement of the machine

V-shaped object with two inclined planes sloped toward each other

Two different sized circular objects that are attached together and turn as one.

A result of a force moving an object a certain distance.

A wheel attached in a fixed location

Attached to a load

A combination of fixed and movable pulleys

(Type of pulley system) Fixed pulley and a movable pulley are used together

Energy stored in chemical bonds

The energy of electric charges

A form of energy that travels through space in the form of waves

the ability to do work

the energy an object has due to its motion

the law that states that energy cannot be created or destroyed but can be changed from one form to another

The amount of work an object can do because of the object's kinetic and potential energies

Energy stored in the nucleus of an atom

stored energy

The total energy of all the particles of an object.

the process or action by which one thing absorbs or is absorbed by another.

Highest point of a wave

the complete range of electromagnetic waves placed in order of increasing frequency

Electromagnetic waves with the shortest wavelengths and highest frequencies

an electromagnetic wave that has a wavelength shorter than a microwave but longer than visible light

very short electromagnetic wave

impossible to see through; preventing the passage of light

A polarized light vibrates or oscillates in only one direction

Electromagnetic waves with the longest wavelengths and lowest frequencies

The bouncing back of a wave when it hits a surface through which it cannot pass.

The bending of a wave as it passes at an angle from one medium to another

reflection of light in all directions

allowing light to pass through, but blurring it so that images cannot be seen clearly

to send something across places; to pass along

Allowing light to pass through; easily recognized or understood; easily seen through or detected

Lowest point of a wave

Part of the electromagnetic spectrum that consists of waves with frequencies higher than those of visible light and lower than those of x-rays

Electromagnetic radiation that can be seen with the unaided eye

A form of energy that travels in waves. X-rays have smaller wavelengths and therefore higher energy.

A disturbance that transfers energy from place to place

Horizontal distance between the crests or between the troughs of two adjacent waves

A fake or false science that makes claims based on little or no scientific evidence.

The rule that in the absence of outside forces the total momentum of objects that interact does not change.

Said force is required to keep an object moving

Said that without friction, an object would keep moving

Defined force and mass as well as the three Laws of Motion

Lever, pulley, screw, wheel and axle, inclined plane, wedge

More ropes

Longer input arm shorter output arm

Thinner wedge

Closer threads

Big wheel, small axle

Less steep

Fulcrum in the middle (see-saw)