Estimating Braking Force (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
Role of friction between brake pads & wheels
Role of friction between brake pads & wheels
Slows the wheels down
Energy transfer during braking
Energy transfer during braking
Kinetic energy → thermal energy
Why work is done during braking
Why work is done during braking
Friction transfers kinetic to thermal energy
Effect on brake temperature when braking
Effect on brake temperature when braking
Temperature increases
Relationship: vehicle speed & kinetic energy
Relationship: vehicle speed & kinetic energy
Faster vehicle = more kinetic energy
Effect of greater braking force
Effect of greater braking force
Greater deceleration
Danger of large deceleration (control)
Danger of large deceleration (control)
Vehicle may lose control
Danger of large deceleration (brakes)
Danger of large deceleration (brakes)
Brakes may overheat
Formula: uniform acceleration with distance
Formula: uniform acceleration with distance
Formula: force using mass & acceleration
Formula: force using mass & acceleration
What kinetic energy becomes during braking
What kinetic energy becomes during braking
Thermal energy in brakes
Why faster vehicles need more work to stop
Why faster vehicles need more work to stop
More kinetic energy to transfer