1 / 10

FORCE

FORCE. A force is a push or a pull. "An object at rest tends to stay at rest and an object in motion tends to stay in motion;. unless acted upon by an unbalanced force.". Force: a vector with the units - Newton ( N ). F. Unbalanced.

dacia
Télécharger la présentation

FORCE

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. FORCE

  2. A force is a push or a pull "An object at rest tends to stay at rest and an object in motion tends to stay in motion; unless acted upon by an unbalanced force." Force: a vector with the units - Newton(N). F

  3. Unbalanced When all forces acting on an object are , the motion of the object will NOT change. balanced balanced Therefore - Unbalanced forces will cause the acceleration of an object (non-uniform motion).

  4. The more mass an object has, the more difficult it is to change the object’s state of motion - INERTIA Changing motion means an acceleration. Accelerating requires a force. F 0 m/s 10 m/s

  5. F = m a Newton's Second Law -relationship between an object’s mass and its acceleration. Force = mass x acceleration Units: N = kg m s2

  6. Acceleration of an object will always be in the same direction as the unbalanced force. force motion If the unbalanced force is in the same direction of motion, the object will speed up. If the unbalanced force is in the opposite direction of motion, the object will slow down.

  7. 20 kg Acceleration = + 5.0 m/s2 Unbalanced Force (+100 N) 20 kg Acceleration = +10.0 m/s2 Unbalanced Force (+200 N)

  8. 50 kg 50 kg 50 kg 50 kg 50 kg 50 kg Acceleration = +10.0 m/s2 Unbalanced Force (+500 N) Acceleration = -10.0 m/s2 Unbalanced Force (-500 N) + v

  9. F m = a If we apply a greater force, there will be a greater acceleration (either speeding up or slowing down). The more massive an object becomes, the greater the force necessary to reach a certain acceleration.

  10. As mass increases, so does inertia. • (resistance to changes in motion) • A unbalanced force on an object, causes acceleration of the object. • The larger the unbalanced force applied, the larger the acceleration of the object. • a larger mass requires a larger force to cause a constant acceleration.

More Related