Forces: Scalars Vs Vectors

Question 1

What is the difference between scalars and vectors?

Answer 1

Scalars have MAGNITUDE, however Vectors have DIRECTION and MAGNITUDE

Question 2

What are scalars and vectors measured with?

Answer 2

Scalars: measured with NUMBERS or UNITS
Vectors: measured with NUMBERS, UNITS and a DIRECTION

Question 3

Define “quantity”.

Answer 3

Quantity: what is being measured

Question 4

Define “unit”.

Answer 4

Unit: the measurement

Question 5

What is the ONE important rule about forces?

Answer 5

All forces are VECTORS -> requries magnitude AND direction

Question 6

Name 10 Scalars.

Answer 6

1. Distance
2. Speed
3. Mass
4. Energy
5. Density
6. Power
7. Length, Area, Volume (All together)
8. Time
9. Temperature
10. Work

Question 7

Name 10 vectors.

Answer 7

1. Displacement
2. Velocity
3. Weight
4. Acceleration
5. Force
6. Impluse
7. Pressure
8. Momentum
9. Gravity
10. Drag (Water and Air resistance)

Question 8

What is the symbol for a vector?

Answer 8

An arrow (->)

Question 9

What determines the size of the vector?

Answer 9

The length of the arrow.
E.g.

—>10N

————>40N

Question 10

Example question: Give a vector with the size of 85N

Scale: 10N = 1cm

Answer 10

Ans.

————————-> 85N