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Physics
GCSE

Calculate the acceleration if a force of 500N is exerted on a mass of 20kg

Using F=Ma, rearrage for a, a= 500/20, the acceleration is 25m/s2

Answered by Patrick L. Physics tutor
3820 Views

Which renewable energy methods are the best?

This depends on what "best" means, but generally this boils down to location.

As an example, consider geothermal energy. This is derived from heat sources inside the Earth. Some places, s...

Answered by Callum W. Physics tutor
1512 Views

If Newton's third law is correct, why are walls not indestructible? In applying a force to a wall, if it breaks surely it is not giving an equal and opposite force.

It is best to consider this in slow motion. First we have a wall which is at equilibrium (no external forces/all forces are balanced). Someone decides that the wall is in its way and wants to break down t...

Answered by Callum W. Physics tutor
3680 Views

Write down the equation which links speed, distance and time

speed = distance/time

Answered by Sean M. Physics tutor
2812 Views

What's the difference between weight and mass and how do I find one from the other?

This is often confusing because in everyday life people might say "how much do you weigh?" to which you might say "60kg", 60 kg is actually your mass and when we talk about weig...

Answered by Jack B. Physics tutor
2178 Views

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