Scalar and Vector Quantities and Density Quiz

Which of the following is a scalar quantity?

• Velocity

• Force

• Energy

• Acceleration

What distinguishes a vector quantity from a scalar quantity?

• Magnitude

• Direction

• Both magnitude and direction

• None of the above

Which of the following is an example of a vector?

• Mass

• Acceleration

• Speed

• Volume

How are vectors combined when they are in opposite directions?

• Add their magnitudes

• Subtract their magnitudes

• Use the Pythagorean theorem

• Multiply their magnitudes

What method is used to find the resultant of two perpendicular vectors?

• Subtraction

• Vector addition

• Trigonometry

• Multiplication

Two cars travel in the same direction at 60 km/h and 40 km/h. What is their combined velocity?

• 20 km/h

• 60 km/h

• 100 km/h

• 40 km/h

A hiker walks 3 km north and 4 km east. What is the resultant displacement?

• 5 km

• 7 km

• 4.5 km

• 6 km

What is the key difference between speed and velocity?

• Speed has magnitude only, velocity includes direction.

• Speed includes direction, velocity does not.

• Speed is a vector, velocity is a scalar.

• Speed is always greater than velocity.

A cyclist travels 12 km north in 30 minutes and returns south in another 30 minutes. What is the average velocity for the trip?

• 24 km/h north

• 0 km/h

• 12 km/h north

• 6 km/h north

What does the displacement method measure?

• Mass

• Density

• Volume of an irregular object

• Weight