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question 7
which one of the following is not a vector quantity?
a. force
b. acceleration
c. weight
d. mass

Explanation:

Step1: Recall vector - scalar definitions

Vector quantities have both magnitude and direction. Scalar quantities have only magnitude.

Step2: Analyze each option

Force has magnitude and direction (e.g., a push or pull in a certain direction), so it is a vector. Acceleration has magnitude and direction (change in velocity per unit time in a certain direction), so it is a vector. Weight is the force due to gravity acting on an object and has a direction (towards the center of the Earth), so it is a vector. Mass is a measure of the amount of matter in an object and has only magnitude, no direction.

Answer:

d. mass