PHSI191-4-theory2

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If an object moves 5 meters east and then 5 meters west, what is its total displacement?

5 meters

0 meters

Cannot be determined

10 meters

None

Which of the following represents the correct vector addition method?

Using head-to-tail method and applying trigonometry if necessary

Ignoring direction and adding magnitudes

Connecting tails of vectors

Using head-to-tail method only all of the time

None

What is the correct way to subtract a vector?

Use vector addition with the inverse of the given vector

Subtract the magnitudes directly

Add the inverse of the vector

Ignore the direction and subtract the values

None

What is the resultant of two vectors acting in opposite directions with equal magnitudes?

The sum of their magnitudes

The product of their magnitudes

Zero

A vector in the same direction as the larger vector

None

In the SI system, what is the base unit for measuring time?

Minute

Millisecond

Hour

Second

None

If a vector is multiplied by a negative scalar, what happens to its direction?

It reverses

It points in a random direction

It becomes zero

It remains the same

None

How do you find the length of a resultant vector given two perpendicular components?

Subtract the two components

Multiply the two components

Use the Pythagorean theorem

Add the two components

None

Which of the following unit conversions is correct?

10km = 1000 meters

1 kg = 1000 grams

1 inch = 1 cm

1 mile = 500 meters

None

What is the purpose of unit conversion?

To change the meaning of a quantity

To express measurements in a consistent standard

To avoid using SI units

To make calculations easier

None

10.

Which of the following is NOT a vector quantity?

Force

Acceleration

Displacement

Mass

None

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