Category: Physics

No.	Topics.	No.	Topics.
1.	CURRENT ELECTRICITY	2.	DAWN OF MODERN PHYSICS
3.	ELECTROMAGNETIC INDUCTION	4.	ELECTROMAGNETISM
5.	ELECTRONICS	6.	ELECTROSTATICS
7.	FORCE AND MOTION	8.	NUCLEAR PHYSICS
9.	ROTATIONAL AND CIRCULAR MOTION	10.	SPECTRA SPECTRA
11.	THERMODYNAMICS	12.	VECTORS AND EQUILIBRIUM
13.	WAVES

The angle for the direction of a resultant vector is conventionally measured counter-clockwise from the…

positive y-axis
negative y-axis
positive x-axis
negative x-axis

The magnitude of the resultant vector from the previous question, R = (6i + 2j), is approximately…

8.0 units
4.0 units
6.3 units
3.5 units

Given two vectors, A = (2i + 3j) and B = (4i – 1j), the resultant vector R = A + B is…

(6i + 4j)
(2i + 2j)
(6i + 2j)
(-2i + 4j)

A displacement of 10 m is directed at 210° counter-clockwise from the positive x-axis. Its y-component is…

-5.0 m
-8.7 m
+5.0 m
+8.7 m

The direction of a resultant vector R with components Rx = -3 and Ry = -3 is…

45°
135°
225°
315°

The resolution of a vector into its perpendicular components is the reverse process of…

vector subtraction
vector composition
scalar multiplication
dot product

A force vector of 20 N is applied along the negative y-axis. Its components (Fx, Fy) are…

(20 N, 0 N)
(0 N, 20 N)
(-20 N, 0 N)
(0 N, -20 N)

The magnitude of the resultant of two vectors can be found using the Pythagorean theorem only if the vectors are…

parallel
anti-parallel
perpendicular
equal in magnitude

The resultant of two perpendicular forces of 5 N and 12 N has a magnitude of…

17 N
7 N
60 N
13 N

A vector F has components Fx = 10 N and Fy = 10 N. The angle this vector makes with the positive x-axis is…

30°
45°
60°
90°

A vector has a horizontal component of 6 units and a vertical component of 8 units. The magnitude of this vector is…

14 units
10 units
2 units
48 units

A displacement vector has components Dx = -4 m and Dy = +3 m. The quadrant in which this vector lies is the…

First Quadrant
Second Quadrant
Third Quadrant
Fourth Quadrant

For a vector making an angle of 135° with the positive x-axis, the signs of its rectangular components (Rx, Ry) are…

(+, +)
(-, +)
(-, -)
(+, -)

A force of 100 N is directed at an angle of 30° with respect to the positive x-axis. Its horizontal (x) component is approximately…

50.0 N
86.6 N
100 N
70.7 N

The vertical (y) component of a velocity vector of 50 m/s making an angle of 60° with the horizontal is approximately…

25.0 m/s
50.0 m/s
35.4 m/s
43.3 m/s

The area under a velocity-time graph represents:

Acceleration
Change in velocity
Displacement
Force

Zero
Variable

A graph of displacement vs time that is a straight line indicates:

Uniform acceleration
Uniform velocity
Variable acceleration
Zero velocity

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