What is Inertia
What is newton first law ?
And object at rest stays ,and an object in motion stays in motion unless acted upon by an unbalanced force .
What happens when a car stops suddenly ?
Passengers keep moving forward until moving forward until stopped by a seatbelt or airbag
Name an object that stays at rest unless pushed.
A chair, a ball, a book on a table.
What does inertia means ?
The tendency of an object to resist changes in its motion .
Why does a dropped object fall straight down ?
Because it was at rest and gravity is the unbalanced force acting on it.
What happens when you quickly pull a tablecloth from under a cup
The cup stays in place due to inertia.
Give an example of an object at rest .
A book on a book on a table ,a chair not moving ,a rock on the ground
Why does a dropped object fall straight down ?
Because it was at rest and gravity is the unbalanced force acting on it .
Why does a moving bike keep going even when you stop pedaling?
Because of inertia, unless friction or another force stops it
Give an example of an object in motion .
A car driving ,a ball rolling ,an airplane flying.
How does a skateboard demonstrate inertia?
It keeps moving until friction or another force stops it ?
What happens when you jump off a moving skateboard?
The skateboard keeps moving
Why do we wear seatbelts
What would happen if there was no friction?
Objects would keep moving forever in the same direction.
Name two places where you can see inertia in action
Cars stopping, roller coasters, playing sports, throwing a ball.