1 / 15

Motion And Forces SC-05-1.2.1 & SC-06-1.2.1

Motion And Forces SC-05-1.2.1 & SC-06-1.2.1. May the force be with you!. Mass vs. Weight. Mass is the amount of “stuff” in an object, or the measure of inertia of an object. Weight is the pull of gravity on an object.

malachi-ashley
Download Presentation

Motion And Forces SC-05-1.2.1 & SC-06-1.2.1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Motion And ForcesSC-05-1.2.1 & SC-06-1.2.1 May the force be with you!

  2. Mass vs. Weight • Mass is the amount of “stuff” in an object, or the measure of inertia of an object. • Weight is the pull of gravity on an object. • An object’s mass is the same throughout the Universe, but your weight changes depending on what planet your on. • Because the gravitational pull on Mars is less than Earth, you weigh less on Mars, but your mass is the same at both locations.

  3. Motion • Motion is the change in position of an object, measured by distance and time.

  4. Force • A force is any push or pull on an object. • Forces give energy to objects. • Forces cause a change in the motion of an object.

  5. Frame of reference • The point from which movement is determined. • To measure movement, some point must be considered as nonmoving. • Earth is the most common frame of reference.

  6. Speed • The distance traveled by a moving object per unit of time. • To calculate speed, use the equation: Speed = distance/time - Speed only gives distance and time.

  7. Average Speed • The speed of a moving object is not always constant • Average speed = total distance/total time

  8. Velocity • Velocity is the speed of an object in a given direction. • Velocity gives distance, time and the direction of travel.

  9. Acceleration • Is the change of speed over time. • Deceleration occurs when the change in speed, or acceleration, is in the negative direction. • Commonly used to mean a decrease in speed.

  10. Sir Isaac Newton • An English mathematician and physicist who discovered one of the most important relationships in physics: the relationship between the force on an object, its mass, and its acceleration.

  11. Newton’s First Law of Motion • An object will stay at rest, while an object in motion will stay in motion, unless acted upon by an unbalanced force. * In other words, unless you apply a force to an object, it tends to keep doing what it was doing in the first place.

  12. Inertia • Newton was the first to use the term inertia to describe the tendency of object to remain in motion or stay at rest. Inertia comes from the Latin word iners, which means lazy.

  13. Newton’s Second Law of Motion • The acceleration of an object is directly related to the force acting on it and inversely related to the object’s mass. • Force = mass x acceleration • In other words, force causes an object to accelerate, while the object’s mass resists acceleration.

  14. Newton’s Third Law of Motion • For every action, there is an equal but opposite reaction. • In other words, all forces act in pairs

  15. Friction • Friction is a force that opposes motion. • Friction always works against the motion that produces them. • There are 3 types of friction: • Fluid Friction • Sliding Friction • Rolling Friction

More Related