際際滷

際際滷Share a Scribd company logo

際際滷share gravity, friction

Download as PPTX, PDF
L
Leanne Petersen

Gravity pulls all objects toward the center of the Earth, causing things like pencils to fall when dropped. Friction is the force that resists the relative motion of objects in contact and can cause heat, as when rubbing hands together. Friction in car brakes and tires helps slow and stop vehicles safely. The document discusses gravity and friction, provides examples of each including falling objects and braking in cars, and asks questions to check understanding.

1 of 10
Downloaded 107 times
Forces: Gravity & Friction
Hold your pencil in your hand and then let it go. What do you think makes it fall to the desk or ground?
Without gravity .
Gravity pulls objects towards the earth.
Things falling to the ground = earths gravitational pull in action.
Friction Rub your hands together quickly. What happens?
Did your hands heat up? What causes the heat?
際際滷share gravity, friction
What part of the car do you think experiences the most friction? How does this friction help us be safe while driving?
Quick check What is gravity? What is friction? Can you think of any other examples of friction or gravity that wasnt talked about today? Share with your table group.

More Related Content

際際滷share gravity, friction