Kinematics 1 Dimension

Question 1

Another way to represent a vector is by using "x" and "y" components in a system of perpendicular axes called:

Accepted Answer

Rectangular Coordinates

Question 2

Find the polar coordinates of a vector with Vx = 96 N and Vy = 72 N.

Accepted Answer

120 N at 36.86°

Question 3

Y-component formula

Accepted Answer

Vy = V sin(θ)

Question 4

X-component formula:

Accepted Answer

Vx = V cos(θ)

Question 5

They are fully specified by a single value and with an appropriate unit and have no direction.

Accepted Answer

Scalar quantities

Question 6

Physical quantities can be classified into 2 categories:

Accepted Answer

Scalars and Vectors

Question 7

What is the "x" component of a velocity vector of 25 m/s at 60°?

Accepted Answer

12.5 m/s

Question 8

Examples of vector quantities:

Accepted Answer

Force, Momentum, Acceleration

Question 9

Calculate the distance (xf) that an object of 5 kg will travel from rest when a force of 4 N acts on it for 10 seconds.

Accepted Answer

40 m

Question 10

Examples of scalar quantities are:

Accepted Answer

Distance, Speed, Mass

Question 11

What is the "y" component of a force vector of 40 N at 150°?

Accepted Answer

20 N

Question 12

When a vector is defined by a cardinal point (North, South, East, West) it is said to be in:

Accepted Answer

Polar Coordinates

Question 13

They are completely specified by a numerical value and corresponding measurement unit and a direction.

Accepted Answer

Vector quantities

Questions 13