Ch - 1 (Scalar and Vector)

Question 1

Define Scalar.

Answer 1

Quantities that have only magnitude.

Question 2

Define vector.

Answer 2

Quantities that have both magnitude and direction.

Question 3

What are examples of scalar?

Answer 3

Mass, speed, distance

Question 4

What are examples of vector?

Answer 4

Weight, velocity, displacement

Question 5

What are the measurements for scalar?

Answer 5

1. Distance
2. Speed
3. Mass
4. Energy
5. Temperature
6. Time

Question 6

What are the measurements for Vector?

Answer 6

1. Displacement
2. Velocity
3. Weight
4. Force
5. Acceleration
6. Momentum
7. Electric field strength
8. Gravitational field strength.

Question 7

How are vector represented?

Answer 7

An arrow

Question 8

What does the arrowhead indicate?

Answer 8

The direction of the vector.

Question 9

What does the length of arrow indicate?

Answer 9

The magnitude

Question 10

What doe Fv rpresent?

Answer 10

Vertical component

Question 11

What does Fh represent?

Answer 11

Horizontal component.

Question 12

What is step 1 of calculating vectors graphically?

Answer 12

Choose a scale that fits the page.

For ex -
Use 1 cm = 10m
or
1 cm = 1 N

So that the diagram is around 10 com High.

Question 13

What is step 2 of calculating vectors graphically?

Answer 13

Draw the vectors at right angles to one another.

Question 14

What is step 3 of calculating vectors graphically?

Answer 14

Complete the rectangle.

Question 15

What is step 4 of calculating vectors graphically?

Answer 15

Draw the resultant vector diagonally from the origin.

Question 16

What is step 5 of calculating vectors graphically?

Answer 16

Carefully measure the length of the resultant vector.

Question 17

What is step 6 of calculating vectors graphically?

Answer 17

Use the scale factor to calculate the magnitude.

Question 18

What is step 7 of calculating vectors graphically?

Answer 18

Use the protractor to measure the angle.