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force - PowerPoint PPT Presentation


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force. A force is a push or pull upon an object resulting from the object's interaction with another object. pull. A pull is a force that acts in the direction of the origin of the force. motion. Motion (physics), any physical movement or change in position or place. gravity.

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Presentation Transcript
slide1
force

A force is a push or pull upon an object resulting from the object's interaction with another object.

pull

A pull is a force that acts in the direction of the origin of the force.

slide2
motion

Motion (physics), any physical movement or change in position or place.

gravity

Gravity is the force that causes two particles to pull towards each other.

slide3
position

The point or area occupied by a physical object

speed

Speed is the rate of motion, or equivalently the rate of change in position, often expressed as distance traveled per unit of time.

slide4
direction

The line or course on which something is moving or is aimed to move or along which something is pointing or facing.

mass

slide5
lever

A lever is a simple machine that makes work easier for use; it involves moving a load around a pivot using a force.

simple machines

wedge

lever

pulley

screw

A simple device, such as a lever, pulley, or inclined plane; a machine without moving parts.

inclined

plane

wheel and

axle

slide6
inclined

plane

pulley

slide7
wedge

screw

slide8
Wheel

and axle

slide9
Light

A range of electromagnetic radiation that can be detected by the human eye

transparent

Allowing light to pass through

slide10
translucent

Allowing only some light to pass through

opaque

Not allowing light to pass through

slide11
Reflection

The bouncing of light off an object

Refraction

The bending of light as it moves from one material to another

slide12
Convex lens

A lens that is thicker at the center than it is at the edges

Concave lens

A lens that is thicker at the edges than it is at the center

slide13
prism

A triangular piece of cut glass used to break white light up into its constituent colors.

ROY G. BIV

The color seen in a rainbow: red, orange, yellow, green, blue, indigo, and violet.

slide14
spectrum

The different colors of light that are coming from a star

Color

The byproduct of the spectrum of light as it is reflected or absorbed

slide15
rainbow

An arc of colored light in the sky caused by refraction of the sun’s rays by rain

vibration

A quick back-and-forth motion; a trembling motion

slide16
Sound wave

Waves formed by compression of the material (as air) through which they travel regardless of whether they can be heard.

pitch

How high or low a sound is

slide17
Loud

Marked by intensity or volume of sound

Soft

Not loud, harsh or irritating

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