The amount of force needed to move an object by a certain distance 

Hiw difficult it is to change the velocity of something 

Pressure in a liquid = more dense = more particles = more collisions = more pressure. The deeper it is the number of particles above that point increases. The height adds to the pressure so the liquid pressure increases

Why will a partially submerged object feel more reassure on the bottom than on the top?

Push/pull on an object caused by it interacting with something 

As altitude increases, atmospheric pressure decreases bc the atmosphere gets less dense so fewer molecules collide with the surface 

Why does pressure drop as we get higher into the atmosphere?

The compressed air slows you down more gradually than if you had just hit the hard  dashboard 

The tendency to stay in rest/motion until another force acts upon it 

How can you calculate acceleration from a velocity time graph?

The gradient would be the speed. The curves would be the acceleration 

How can you find speed and accel using a distance-time graph?

The faster the vehicle, the more kinetic energy, the more work done, the greater the braking force 

What is velocity? Is it scalar or vector?

because the direction is always changing so the speed is constant but the velocity isn’t 

Why is an object moving around in a circle at constant speed constantly accelerating?

When brake pads are pressed on wheels, it causes friction. Work is done which transfers energy from moreover energy store to thermal energy store which increases temperature.

How does braking lead to the overheating of brakes?

The momentum before and after an event is equal in a closed system.

What is the typical reaction time of a driver? 

It can cause the road surface to become slippy, making it harder to stop which increases the braking distance   

How does ice and rain affect braking stance? 

If there’s a bigger force, there’s a larger change in momentum. Cars are designed to slow people overtime. The smaller the change, the smaller the force so less illa r so less severe injuries. They are designed with crumple zones and belts and airbags 

Apply the equation for change in momentum to car safety 

We know that f=ma and a = change in velocity/change in time so u can substitute this in 

Explain how 2 equations are used to make the equation for momentum 

Increased by cognitive exercises. Decreased by tiredness, drugs and alcohol. Other factors include stimuli/age/distraction 

How can reaction time be increased or decreased?

Speed/weather/road surface/ condition of tyres/quality of breaks 

What is the braking distance affected by?

What 2 things can make up a stopping distance?

distance = scalar (magnitude only) but displacement = vector so has a magnitude and direction 

Explain the difference between distance and displacement 

What is the relationship between acceleration, force and mass? 

It will be a linear graph. Once it’s reached the limit, it’ll curve. 

How can you tell from a graph that an object has not passed the limit of proportionality?

The total anti-clockwise moment is equal to the total clockwise moment so the object won’t turn.

When an object is balanced, what can you say about the moment acting on it?

What is the equation for pressure in a fluid?

A pair of forces that are equal and opposite and act on 2 interacting objects 

Something that has a magnitude and direction 

The length represents the magnitude and the direction of the arrow represents the direction

On surfaces of planets, everything falls to the ground. And everything is given a weight.

When an object can’t return to its original shape or length after being stretched or compressed 

When an object can go back to its original shape or length after being stretched or compressed 

If forces are parallel, add those in the same direction and subtract those going opposite.

How can you calculate a resultant force for forces acting 180° to each other?

English (UK)

Entire forces topic for the AQA specification for GCSE physics 

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taz !

United Kingdom

DEFAULT (England)

Physics

Forces - GCSE physics 

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Revision maps for all 9 crime and deviance topics
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model answer for the unit 3 assessment in year 13

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Macbeth quotes with positions in the play


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GCSE Physics Forces AQA Specification PDF - Questions, Answers & Examples

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GCSE Physics Forces AQA Specification PDF - Questions, Answers & Examples

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AQA GCSE PHYSICS TOPIC 4 - atomic structure - FLASHCARDS

[Seperate] Physics Topic 8: Space & other (MASTER Booklet)