AQA GCSE Physics Paper 1 Higher - Thursday, May 22, 2025 [Exam Chat]

Bro its literally speed=distance/time. Why would the length of the car even matter its not applicable to any equaytion. Stop gaslighting yourself 😭 it was the last two options

Length of track would give you an average speed, length of car would give you speed at a point

What so if the car was longer it would affect the speed😝 maybe cuz of air resistance but otherwise no mate. In what calculations do u do length of car/time= speed

It's length of track sorry. The length of car wouldn't affect speed bc js imagine if ur driving. It's not car length over time, it's distance ( length of the track), over time.

It's length of track sorry. The length of car wouldn't affect speed bc js imagine if ur driving. It's not car length over time, it's distance ( length of the track), over time.

It's length of track sorry. The length of car wouldn't affect speed bc js imagine if ur driving. It's not car length over time, it's distance ( length of the track), over time.

It said it was a light gate though,,,

Position A kinetic energy at maximum point position B increase in gravitational potential energy store. Position C energy transferred back to kinetic energy store

Bro its literally speed=distance/time. Why would the length of the car even matter its not applicable to any equaytion. Stop gaslighting yourself 😭 it was the last two options

i did 256000/16000=16 2^4 =16 so 4 half lives one half life was 138 days so 138*4=552

shouldn't it be divided by 4? Cos i got all the right numbers but divided by 4 instead of multiplying.

alright chat think, the option said "Time for the toy car to pass the light gate", not the time it takes for the car to complete the whole race track. When it says the car passes the light gate, it means the time from when the front of the car enters the gate to when the back of the car exits it. so the distance the car travels during that time is just its length, not the entire track. and the distance would then be the length of the car. you're right that speed = distance ÷ time, but I think you misunderstood what the "time" in this context is referring to. and if you can just measure the total length of the race track and divide it by time to measure the speed, why the hell would you need the light gate? the light gate is used literally to be more accurate at that specific point when the car is going through the gate. some people say what so if the car was longer, it would affect the speed? if the car is longer, the distance would be greater, AND the time taken will be longer TOO, so it wouldn't affect the speed, because the time taken is proportional to the length of the car. watch a video on how to measure speed with light gates, then you will understand it better. w for the people who chose the length of the car

So when you’re calculating the speed of a person who reaches the finish line do u take a body width measurement?