Physics Practice Test – Scalars and Vectors (Questions with Answers and Explanations)

Which of the following pairs of units are fundamental? (NECO 2018)

A. Ampere and second
B. Kilogram and Joule
C. Kelvin and watt
D. Metre and Newton

If the angle between two vectors P and Q is 0^o, the vectors are said to _____ (JAMB 2004)

A. be perpendicular
B. be parallel
C. intersect at angle 60^o
D. intersect at angle 45^o

The pair of physical quantities consisting of vectors only is _____

A. displacement and torque
B. momentum and power
C. acceleration and speed
D. velocity and distance

Which of the following sets has derived quantities only? (NECO 2014)

A. Acceleration, density and power
B. Current, momentum and mass
C. Luminous intensity, velocity and time
D. Magnetic flux, force and length

What is the magnitude of the resultant of two forces of magnitudes 10 N and 7 N acting at a point in opposite direction? (NECO 2015)

A. 1.4 N     B. 3.0 N     C. 12.0 N     D. 17.0 N