Scalars and Vectors
Physics ⇒ Mechanics
Scalars and Vectors starts at 8 and continues till grade 12.
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See sample questions for grade 9
Define a scalar quantity.
Define a vector quantity.
Explain how to add two vectors using the parallelogram law.
Explain the difference between distance and displacement.
A car travels 100 km north and then 100 km east. What is the magnitude of its displacement?
A force of 5 N acts to the right and another force of 3 N acts to the left on an object. What is the net force acting on the object?
A person walks 3 km east and then 4 km north. What is the magnitude of the displacement?
A person walks 5 km north, then 12 km east. What is the magnitude of the displacement?
Which of the following is a correct example of a vector quantity?
(1) 10 m/s
(2) 10 m/s east
(3) 10 m
(4) 10 kg
Which of the following is a scalar quantity?
(1) Acceleration
(2) Force
(3) Distance
(4) Displacement
Which of the following is a scalar quantity?
(1) Displacement
(2) Velocity
(3) Distance
(4) Acceleration
Which of the following is a scalar quantity?
(1) Momentum
(2) Force
(3) Power
(4) Weight
Fill in the blank: The direction of a vector is indicated by an ________.
Fill in the blank: The magnitude of a vector is always a ________ quantity.
Fill in the blank: The process of breaking a vector into its components is called ________.
Fill in the blank: The resultant of two equal vectors at 90° to each other is ________ times the magnitude of one vector.
State whether the following statement is true or false: Distance can be zero but displacement cannot be zero.
State whether the following statement is true or false: Force is a vector quantity.
State whether the following statement is true or false: The direction of a scalar quantity is always specified.
State whether the following statement is true or false: The magnitude of a vector can never be negative.
