vectors and scalars Flashcards

1
Q

what is displacement

A

distance without change of direction

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

what are vectors?

A

physical quantities that have size and direction

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

examples of vectors

A

acceleration, momentum, force, weight and GFS

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

what are scalers?

A

physical quantities that have size but no specific direction

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

examples of scalers?

A

speed, distance, time, energy, mass and power

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

a size of a quantity is its?

A

magnitude

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

vectors have?

A

magnitude and direction

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

scalers have?

A

magnitude

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

what does newton’s third law of motion state?

A

when two objects interact with each other, they exert equal and opposite forces of each other.

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

what’s the unit of force?

A

newtons

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

what does newton’s first law of motion state?

A

if the forces acting on an object are balanced, the resultant force is zero and:
if the object is at rest it stays stationary
if the object is moving, it keep moving at the same speed and in the same direction

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

what is the calculation for moments?

A

moment = force x perpendicular distance from the line of action from the force of the pivot

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

what is moment?

A

the turning effect of the force

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

the moment can be increased by?

A

increasing the size of the force

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

explain a practical that investigating the turning effect of a force

A

idk

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