P5-Forces

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  • Created by: Wynnie24
  • Created on: 19-02-19 13:44
In a closed system, the total momentum after a collision is.....
..... the same as the total momentum before the collision
1 of 17
Up to the limit of proportionality, the extension of a stretched spring is.....
.....directly proportional to the force applied
2 of 17
Equation for weight, of an object of mass in a gravitational field of strength.....
W=m x g
3 of 17
What is the name of the point at which the weight an object be considered to act?
The Centre of Mass
4 of 17
Stopping distance is equal to.....
.....thinking distance + braking distance
5 of 17
When two objects interact, the forces they exert on each other are.....
.....equal and in opposite directions
6 of 17
What is a scalar?
A scale of force/object
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What are vectors?
They show the direction of the scale
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What is the equation for Stopping Distance?
Thinking distance + Braking Distance
9 of 17
What is thinking distance?
The distance that you travel while reacting to a stimulus until you get your foot onto the break pedal
10 of 17
Factors that affect thinking distance
Stimulus-drugs/alcohol, Age, Tiredness, Distractions
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What is braking distance?
The distance that you travel from pressing the brake pedal until you come to a final stop
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Factors that affect braking distance
Weather, Road Conditions, Tyres, Brake Conditions, Weight of Vehicle
13 of 17
What is Braking Force?
The greater the speed of the vehicle, the greater the braking force needed to stop the vehicle in a certain direction
14 of 17
What is momentum?
Momentum is a vector.
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Momentum explanation
The momentum of an object only depends on its mass and its velocity. Momentum is concerned in quantity. momentum stays the same before and after an event.
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What is the momentum of an object that isn't moving?
A stationary object has no momentum
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Other cards in this set

Card 2

Front

.....directly proportional to the force applied

Back

Up to the limit of proportionality, the extension of a stretched spring is.....

Card 3

Front

W=m x g

Back

Preview of the back of card 3

Card 4

Front

The Centre of Mass

Back

Preview of the back of card 4

Card 5

Front

.....thinking distance + braking distance

Back

Preview of the back of card 5
View more cards

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