Quiz Laboratory (Definitions)

Question 1

What method of vector addition is also called the polygon method?

A. head-to-tail
B. component
C. parallelogram
D. polygon

Answer 1

C.

Question 2

What method of vector addition deals with connecting vectors from one to another?

A. head-to-tail
B. component
C. parallelogram
D. polygon

Answer 2

A.

Question 3

The wind is blowing towards east. The pilot of an airplane wishes to fly due North. What is the resultant direction of the plane?

A. east
B. north of east
C. north of west
D. west

Answer 3

B.

Question 4

Ken swims northwards across the river that flows west. If the river’s current is fast, in what direction will Ken be directed?

A. east
B. north of east
C. north of west
D. west

Answer 4

C.

Question 5

A boat is sailing west at the speed of 24 m/s across a river that is flowing south at 10 m/s. What is the resultant direction of the boat?

A. north of west
B. south of west
C. north of east
D. south of east

Answer 5

B.

Question 6

What does the slope of 2d vs t^2 graph indicate?

A. acceleration
B. speed
C. velocity
D. displacement

Answer 6

A.

Question 7

Which statement best describes the motion of the body that is moving in constant positive speed?

A. The body moves in uniform motion or in constant speed.
B. The speed of the body changes as time increases.
C. The graph is increasing, which indicates that the body is accelerating.
D. The velocity of the body changes per second at a constant rate.

Answer 7

A.

Question 8

Which is true about free falling motion?

A. It is considered as an idealized motion since the object’s speed does not change.
B. In the absence of air resistance objects will fall at the same rate of change regardless of size and mass.
C. The force of gravity influences the motion of the object thus, increasing its rate of change of speed.

Answer 8

C.

Question 9

What refers to the motion of an object that is projected into the air and is acted upon by the force of gravity?

A. accelerating
B. free fall
C. projectile
D. uniform motion

Answer 9

B.

Question 10

Which statement is false about the projectile?

A. The horizontal component of the projectile behaves in uniform motion and moves at a constant rate of change in speed.
B. The vertical component of the projectile is like a free-falling body and moves at a uniform rate of change in speed.
C. The horizontal and vertical components of the projected are independent to each other.
D. The speed of the projectile decreases at moves to the peak because its vertical components become zero as it momentarily stops.

Answer 10

D.