Motion graphs (distance and time) Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

When the speed/velocity of an object is changing what is it called?

A

Acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is acceleration?

A

The change of speed/ velocity of an object over a given time.

=difference in speed/ time taken
m/s2 = m/s ÷ s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What Is momentum?

A

The amount of force required to make an object come to a stop from it in action.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the formula for speed?

A

Speed (m/s) = distance (m) / time (s)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do you calculate average speed?

A

Total distance / Total time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

On a distance time graph what does the gradient equal to?

A

The speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

On a distance time graph what does it mean if the shape of the gradient is straight (at an angle)?

A

Constant speed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

On a distance time graph what does it mean if the gradient is curved?

A

Speed is changing, the object is accelerating.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

On a distance time graph what does it mean if the gradient is fully horizontal?

A

The object is stationary.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

On a distance time graph what does it mean if the gradient is positive and straight?

A

The speed is at a constant rate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

On a distance time graph what does it mean if the gradient is straight and negative?

A

The speed is at a constant speed going in the opposite direction .

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

On a distance time graph how do you calculate the average speed of a curve?

A

Draw a tangent and then calculate the gradient.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is velocity?

A

A vector quantity that shows us the speed and direction of an object.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the formula for acceleration?

A

Acceleration (m/s2) =Change in velocity (m/s) / time (s)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do you describe acceleration?

A

The object has increased their speed by …m/s every second for … seconds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How do you describe deceleration?

A

The object has decreased their speed by …m/s every second for … seconds.

17
Q

If an object is decelerating what should its acceleration be?

A

-… m/s 2

18
Q

On a velocity time graph what does the gradient show?

A

The acceleration.

19
Q

On a velocity time graph what does it mean if the gradient is fully horizontal ?

A

Constant velocity.

20
Q

On a velocity time graph what does it mean if the gradient is angled upwards ?

A

Object is accelerating.

21
Q

On a velocity time graph what does it mean if the gradient is angled downwards ?

A

Object is decelerating.

22
Q

What is the formula for acceleration?

A

final - initial velocity / time

23
Q

What is displacement?

A

The minimum of what an object has travelled between points