1 Which two terms represent a vector quantity and the scalar quantity of the vector’s magnitude, respectively?

(1) acceleration and velocity
(2) weight and force
(3) speed and time
(4) displacement and distance

1         2         3         4        

2 A 4.0-kilogram rock and a 1.0-kilogram stone fall freely from rest from a height of 100 meters. After they fall for 2.0 seconds, the ratio of the rock’s speed to the
stone’s speed is

(1) 1:1      (3) 2:1
(2) 1:2     (4) 4:1

1         2         3         4        

3 Two concurrent forces have a maximum resultant of 45 newtons and a minimum resultant of 5 newtons. What is the magnitude of each of these forces?

(1) 0 N and 45 N    (3) 20. N and 25 N
(2) 5 N and 9 N      (4) 0 N and 50. N

4 In the diagram below, a box is on a frictionless horizontal surface with forces F1 and F2 acting as shown.

If the magnitude of F1 is greater than the magnitude of F2, then the box is

(1) moving at constant speed in the direction of F1
(2) moving at constant speed in the direction of F2
(3) accelerating in the direction of F1
(4) accelerating in the direction of F2

1         2         3         4        

5 When a satellite is a distance R from the center of Earth, the force due to gravity on the satellite is F. What is the force due to gravity on the satellite when its distance from the center of Earth is 3R?


(1) F/9    (3) F
(2) F/3    (4) 9F

1         2         3         4