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Scalar And Vector Quantities - SS1 Physics Past Questions and Answers - page 4

31

In a right-angled triangle, the vertical component of a vector is given by:

A

The magnitude of the vector multiplied by the sine of the angle.

B

The magnitude of the vector multiplied by the cosine of the angle.

C

The magnitude of the vector divided by the sine of the angle.

D

The magnitude of the vector divided by the cosine of the angle.

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32

In a right-angled triangle, the horizontal component of a vector is given by:

A

The magnitude of the vector multiplied by the sine of the angle.

B

The magnitude of the vector multiplied by the cosine of the angle.

C

The magnitude of the vector divided by the sine of the angle.

D

The magnitude of the vector divided by the cosine of the angle.

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33

The sum of the components of a vector is equal to:

A

The magnitude of the vector.

B

The direction of the vector.

C

The vector itself.

D

The magnitude and direction of the vector.

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34

When resolving a vector into components, the magnitude of the resultant vector is equal to:

A

The sum of the magnitudes of the components.

B

The difference of the magnitudes of the components.

C

The product of the magnitudes of the components.

D

The division of the magnitudes of the components.

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35

When resolving a vector into components, the direction of the resultant vector is determined by:

A

The magnitudes of the components.

B

The difference of the magnitudes of the components.

C

The product of the magnitudes of the components.

D

The angle between the vector and the coordinate axes.

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36

The resolution of a vector into its components is a useful technique in:

A

Vector addition.

B

Vector subtraction.

 

C

Vector multiplication.

D

Vector division.

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37

The resolution of a vector into its components is most commonly used in which branch of physics?

A

Mechanics.

B

Thermodynamics.

C

Optics.

D

Electricity and magnetism.

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38

The resolution of a vector into its components allows for the analysis of:

A

Motion in one dimension.

B

Motion in two dimensions.

C

Motion in three dimensions.

D

Motion in any number of dimensions.

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39

A force vector F has a magnitude of 10 N and is directed at an angle of 60 degrees with the x-axis. Resolve the force vector into its x and y components.

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40

A displacement vector D has a magnitude of 12 m and is directed at an angle of 45 degrees with the positive x-axis. Resolve the displacement vector into its x and y components

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