Category: Physics

No.	Topics.	No.	Topics.
1.	Acceleration -FORCE AND MOTION	2.	Addition of Vectors (Rectangular Components
3.	CURRENT ELECTRICITY	4.	DAWN OF MODERN PHYSICS
5.	Displacement-time Graph-FORCE AND MOTION	6.	ELECTROMAGNETIC INDUCTION
7.	ELECTROMAGNETISM	8.	ELECTRONICS
9.	ELECTROSTATICS	10.	FORCE AND MOTION
11.	FORCE AND MOTION Displacement	12.	FORCE AND MOTION Velocity
13.	NUCLEAR PHYSICS	14.	Product of Vectors (Scalar Product
15.	ROTATIONAL AND CIRCULAR MOTION	16.	SPECTRA SPECTRA
17.	THERMODYNAMICS	18.	VECTORS AND EQUILIBRIUM
19.	WAVES

A velocity vector is given by V = 20 m/s at 150° with the x-axis. Its rectangular components (Vx, Vy) are approximately:

(17.3, 10)
(-17.3, 10)
(10, 17.3)
(-10, 17.3)

The magnitude of a vector is 15 units, and its y-component is 9 units. The magnitude of its x-component is:

6 units
10 units
12 units
15 units

If a vector has components Ax = -5 units and Ay = 5 units, the vector lies in the:

First quadrant
Second quadrant
Third quadrant
Fourth quadrant

A force of 20 N has an x-component of 10 N. The angle this force makes with the positive x-axis is:

30°
45°
60°
90°

The y-component of a vector is zero. The vector must be oriented along the:

y-axis
x-axis
45° line
135° line

The x-component of a vector A is equal to its magnitude. The angle of vector A with the x-axis must be:

0°
45°
90°
180°

For a force vector of 50 N making an angle of 60° with the y-axis, its y-component is:

25 N
43.3 N
50 N
35.4 N

A vector of magnitude 10 N makes an angle of 30° with the positive x-axis. Its x-component is:

5 N
8.66 N
10 N
7.07 N

A force F=6i-8j N produces an acceleration of 1 m/s². The mass of the body is…

2 kg
10 kg
14 kg
100 kg

The x-component of a vector is √3 times its y-component. The angle the vector makes with the x-axis is…

30°
45°
60°
90°

The resultant of two forces, 12 N and 5 N, acting on a particle has a magnitude of 13 N. The angle between the two original forces is…

0°
45°
90°
180°

Given A=2i+3j and B=i+j, the component of vector A along vector B is…

5
5/√2
√2
√13

A vector makes an angle of 45° with the x-axis and 60° with the y-axis. The angle it makes with the z-axis must be…

30°
45°
60° or 120°
90°

Two vectors A and B are such that A+B = R and A-B = S. If R is perpendicular to S, then…

A = B (magnitude)
A is perpendicular to B
A is parallel to B
B = 2A

The resultant of F1 = 5N at 37° and F2 = 5N at 323° is… (cos37° ≈ 0.8, sin37° ≈ 0.6)

10 N along the x-axis
8 N along the x-axis
6 N along the y-axis
0 N

A force vector pointing from the origin to the point (3, 4, 12) has a magnitude of…

19
13
√25
√153

A vector has a magnitude of 2√2 and lies on the line y = -x in the second quadrant. Its components are…

(2, -2)
(-2, 2)
(-√2, √2)
(√2, -√2)

The resultant of two perpendicular forces has a magnitude of 10 N. If one force is 6 N, the other force must be…

4 N
16 N
8 N
2 N

A force vector has a magnitude F. If its angle with the horizontal is increased from 0° to 90°, its horizontal component…

increases
decreases
remains constant
first increases then decreases

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