Inertia (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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What is inertia?
What is inertia?
Things keep doing what they're doing unless acted upon by a force
Inertia effect on stationary object
Inertia effect on stationary object
Stays still unless pushed or pulled
Inertia effect on moving object
Inertia effect on moving object
Keeps 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 large inertial mass
Effect of large inertial mass
Tougher to speed up, slow down, or change direction
Formula for inertial mass
Formula for inertial mass
Bigger mass requires...
Bigger mass requires...
More force to change movement
Car vs trolley: which harder to push?
Car vs trolley: which harder to push?
Car (bigger inertial mass)
Why is car harder to push than trolley?
Why is car harder to push than trolley?
Car has bigger inertial mass
Same push: lighter vs heavier object
Same push: lighter vs heavier object
Lighter object speeds up more