3.1 Motion Flashcards

1
Q

What is acceleration?

A

The rate of change of velocity

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

What is average spped?

A

The distance over time for the entire region of interest

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

What is displacement?

A

The direct distance between an objects starting and ending positions. It is a vector quantity and so has both a direction and a magnitude

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

What is braking distance?

A

The distance travelled between the brakes being applied and the vehicle coming to a stop. It is affected by the vehicle and the road conditions

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

What are displacment time graphs?

A

Plots showing how displacement changes over a period of time. The gradient of the graph gives the velocity. The curved line represents an acceleration.

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

What is freefall?

A

An object is said to be in free fall when the only force acting on it is the force of gravity

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

What is instantaneous speed?

A

The exact speed of an object at a specific given point

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

What is projectile motion?

A

The motion of an object that is fired from a point and then upon which only gravity acts. When solving projectile motion problems, splitting the motion into horizontal and vertical components is useful.

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

What is reaction time?

A

The time taken to process a stimulus and trigger a response to it. It is affected by alcohol, drugs and tiredness

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

What is stopping distance?

A

The sume of thinking distance and braking distance for a driven vechile

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

What are velocity time graphs?

A

Plots showing how velocity changes over a period of time. The gradient gives acceleration. Curved lines represent changing acceleration

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

What is velocity?

A

The rate of change of displacement. It is a vector quantity and so has both a direction and a magnitude.

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