WAEC Physics Past Questions & Answers - Page 248

1,237.

The time rate of change of displacement is known as

A.

speed

B.

velocity

C.

impulse

D.

acceleration

Correct answer is B

No explanation has been provided for this answer.

1,240.

Palm oil from a bottle flows out more easily after it as been heated because the

A.

molecules are given potential energy during the heating

B.

friction between oil layers is reduced

C.

oil molecules force each other out

D.

adhesion between the oil molecules and those of the bottle is increased

Correct answer is B

No explanation has been provided for this answer.