Lesson 2.2 : Where and When ?

A coordinate system tells you the location of the zero point of the variable you are studying and the direction in which the values of the variable increase.

• True

• False

.............. is the distance and direction from the origin to the object.

• Position

• Speed

• Time

A quantity that is just a number without any direction is a ....................

• scalar

• vector

Quantities that have both size (also called magnitude) and direction are called ..........

• Scalar

• Vector

Which of the following is a scalar physical quantity?

• mass

• velocity

• acceleration

Which of the following is a vector quantity?

• speed

• force

• time interval

Which of the following represents the formula for displacement?

• xf - xi

• xf+ xi

• xf * xi

What is the displacement of the athelete?

• 5

• 20

• 25

What is the value of the resultant vector in the diagram below?

• 3 km east

• 5 km east

• 7 km east

What is the resultant of two vectors A and B as shown in the figure?

• 2 km east

• 2 km west

• 4 km east