Question
Which quantity is a vector?
acceleration
distance
speed
mass
Answer/Explanation
Ans: A
Question
A boat starts moving across a river at velocity v perpendicular to the river bank.
The boat encounters a current along the river of velocity u, as shown.
Which vector diagram shows the resultant velocity r of the boat?
Answer/Explanation
/>Ans: C
Question
Which is the value of a vector quantity?
A.200 V
B. 100 kg / 
C. 20 m / s, east
D. 50 J / (kg °C)
Answer/Explanation
Ans: C
Question
A ball of weight 1.2 N drops through the air at terminal velocity.
A sudden gust of wind exerts a horizontal force of 0.5 N on the ball from the left.
Which diagram shows the resultant force on the ball while the wind is blowing? 
Answer/Explanation
Ans: C
Question
A scalar quantity has
A. magnitude and direction.
B. no magnitude and no direction.
C. magnitude but no direction.
D. direction but no magnitude.
Answer/Explanation
Ans: C