# Distance, displacement, speed and velocity- page 12

• Created by: emj790
• Created on: 25-02-17 10:14
What must it have to be a vector?
Magnitude (size) and a direction
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Lots of __ are vector quantities
Physical quantities
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Give some examples of vector quantities (6)
Force, velocity, displacement, weight, acceleration, momentum, etc.
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What must it have to be scalar?
Magnitude (size) and no direction
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Give some examples of scalar quantities (6)
Speed, distance, mass, energy, temperature, time, etc.
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What is distance, scalar or vector?
Scalar
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What is displacement, scalar or vector?
Vector
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What is distance?
How far an object has moved
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What does displacement do?
It measures the distance and direction in a straight line from an object's starting point to its finishing point
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If you walk 5m north and then 5m south, what is the distance and displacement?
The distance is 10m and the displacement is 0m
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What is speed, scalar or vector?
Scalar
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What is velocity, scalar or vector?
A vector
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What do speed and velocity measure?
How fast you're going
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What is speed?
How fast you are going without any regard to direction
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Give an example
Something along the lines of: 30mph or 20m/s
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What is velocity?
It is speed in a given direction
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Give an example
Something along the lines of: 30mph north or 20m/s, 060degrees
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Due to the difference, what does this mean you can have at constant speed?
You can have objects travelling at a constant speed with a changing velocity
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When would this happen?
When the object is changing direction whilst staying at the same speed
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What is the equation for distance, speed and time?
speed= distance/time
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What rarely happens?
Objects travelling at a constant speed
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This means what normally?
That your speed is always changing
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What is the typical speed for walking?
1.4 m/s (5km/h)
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What is the typical speed for running?
3 m/s (11km/h)
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What is the typical speed for cycling?
5.5 m/s (20km/h)
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What is the typical speed for cars in a built-up area?
13 m/s (47km/h)
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What is the typical speed for cars on a motorway?
31 m/s (112km/h)
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What is the typical speed for trains?
Up to 55 m/s (200 km/h)
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What is the typical speed for wind speed?
5-20 m/s
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What is the typical speed of sound in air?
340 m/s
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## Other cards in this set

### Card 2

#### Front

Lots of __ are vector quantities

#### Back

Physical quantities

### Card 3

#### Front

Give some examples of vector quantities (6)

### Card 4

#### Front

What must it have to be scalar?

### Card 5

#### Front

Give some examples of scalar quantities (6)