Scalar And Vector

Question 1

Scalar quantities

Answer 1

Only have magnitude

Question 2

Vector quantities

Answer 2

Have both magnitude and direction

Question 3

How are vector quantities represented?

Answer 3

By an arrow

Question 4

Examples of scalar quantities:

Answer 4

Mass
Distance
Speed
Energy
Time
Power

Question 5

Examples of vector quantities:

Answer 5

Force
Acceleration
Displacement
Velocity

Question 6

Displacement vectors are…

Answer 6

… the ground covered from starting point to finishing point

Question 7

How can we mathematically resolve vectors?

Answer 7

Pythagoras or trigonometry

Question 8

Newtons 3rd law

Answer 8

Whenever one object exerts a force on a second object, the second object exerts an equal and oppositely directed force on the first

Question 9

Contact force

Answer 9

If objects have to be touching for a force to act

Question 10

Non-contact force

Answer 10

If objects do not need to be touching for a force to act

Question 11

Examples of contact forces:

Answer 11

Friction
Air resistance
Tension
Reaction

Question 12

Examples of non-contact forces:

Answer 12

Gravitational forces
Magnetic forces
Electrostatic forces