Inertia (Edexcel GCSE Physics): Flashcards
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Practise the cards
12 cards from this deck
What is inertia?
What is inertia?
The tendency of objects to keep doing what they're already doing
Inertia for stationary objects
Inertia for stationary objects
Stay still unless pushed or pulled
Inertia for moving objects
Inertia for moving objects
Keep moving at same speed & direction unless acted upon
What is inertial mass?
What is inertial mass?
How hard it is to change the way something is moving
Effect of big inertial mass
Effect of big inertial mass
Tougher to speed up, slow down, or change direction
Formula for inertial mass
Formula for inertial mass
Bigger things need _____ force to change movement
Bigger things need _____ force to change movement
More
Large inertial mass requires _____ push to accelerate
Large inertial mass requires _____ push to accelerate
Harder
Car vs trolley - which is harder to push?
Car vs trolley - which is harder to push?
Car
Why is a car harder to push than a trolley?
Why is a car harder to push than a trolley?
It has a bigger inertial mass
Same push: lighter or heavier object speeds up more?
Same push: lighter or heavier object speeds up more?
Lighter object
Shopping trolley's inertial mass compared to car
Shopping trolley's inertial mass compared to car
Smaller