U1.2 Scalars And Vectors Flashcards
1
Q
What is a scalar
A
A quantity that has magnitude only
2
Q
What is a vector
A
A quantity that has magnitude and direction
3
Q
Name 5 examples of scalars
A
Distance
Speed
Mass
Area
Volume
Time
Temperature
Energy
Power
Density
Charge
4
Q
Name 5 examples of vectors
A
Displacement
velocity
Acceleration
Force
Momentum
Electric current
Weight
Moment of a force
5
Q
What is the definition of a resultant force
A
A single force which replaces all the forces acting on an object or has the same effect
6
Q
How can you find the magnitude of a resultant vector
A
Pythagoras’ theorem
7
Q
How to we find the direction of a resultant vector
A
Trigonometry
8
Q
When giving a resultant force what two things must you state
A
Magnitude and direction
