Which of the following is not a vector quantity?
a. temperature
b. velocity
c. acceleration
d. displacement
[Ques. 2] A truck moves 80.0 m east, then moves 140.0 m west, and finally moves east again a distance of 80.0 m. If east is chosen as the positive direction, what is the truck's resultant displacement?
a. 20.0 m
b. 20.0 m
c. 300.0 m
d. 300.0 m
e. 140.0 m
[Ques. 3] Displacement is which of the following types of quantities?
a. vector
b. scalar
c. magnitude
d. dimensional
[Ques. 4] A change in a physical quantity w having initial value wi and final value wf is given by which of the following?
a. wi wf
b. wf wi
c. (wf + wi)/2
d. none of the above
[Ques. 5] A plane is moving due north, directly towards its destination. Its airspeed is 210 mph. A constant breeze is blowing from west to east at 20.0 mph. At what rate is the plane moving north?
a. 209 mph
b. 211 mph
c. 204 mph
d. 199 mph
e. 194 mph
[Ques. 6] A plane is moving due north, directly towards its destination. Its airspeed is 210 mph. A constant breeze is blowing from west to east at 25.0 mph. In which direction is the plane pointed?
a. 6.79 W of N
b. 83.2 W of N
c. 44.8 W of N
d. 83.2 E of N
e. 45.2 E of N
[Ques. 7] A plane is moving due north, directly towards its destination. Its airspeed is 220 mph. A constant breeze is blowing from west to east at 50 mph. How long will it take for the plane to travel 220 miles north?
a. one hour
b. more than one hour
c. less than one hour
d. more information is needed
e. none of the above
[Ques. 8] Plane A is flying at 350 mph in the northeast direction relative to the Earth. Plane B is flying at 460 mph in the north direction relative to the Earth. What is the direction of motion of Plane B as observed from Plane A?
a. 70.7 N of E
b. 49.3 N of W
c. 40.7 N of W
d. 19.3 N of W
e. 48.2 N of E
[Ques. 9] Plane A is flying at 440 mph in the northeast direction relative to the Earth. Plane B is flying at 550 mph in the north direction relative to the Earth. What is the speed of Plane B as observed from Plane A?
a. 570 mph
b. 916 mph
c. 392 mph
d. 704 mph
e. 714 mph
[Ques. 10] A boat travels upstream and after one hour has gone 10 km. The boat next travels downstream and after one hour has gone 18 km. If the boat's speed relative to the water is constant, what is the speed of the current in the river?
a. 3 km/h
b. 4 km/h
c. 5 km/h
d. 6 km/h
e. 7 km/h
Quick Reply
