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 10
Define a scalar quantity and give two examples.
Define a vector quantity and give two examples.
Describe how to subtract one vector from another using the parallelogram law.
Explain the difference between distance and displacement.
A boy walks 6 m west, then 8 m south. What is his displacement from the starting point?
A car travels 100 km north and then 100 km east. What is the magnitude of its displacement?
A person walks 4 m east and then 3 m north. What is the magnitude of the displacement?
A vector has a magnitude of 10 units and makes an angle of 60° with the x-axis. What are its x and y components?
Which of the following is a scalar quantity? (1) Displacement (2) Velocity (3) Time (4) Acceleration
Which of the following is a scalar quantity? (1) Velocity (2) Acceleration (3) Distance (4) Force
Which of the following is a vector quantity? (1) Power (2) Pressure (3) Weight (4) Energy
Which of the following is NOT a property of vectors? (1) They can be added using the triangle law. (2) They have only magnitude. (3) They can be subtracted. (4) They have direction.
Fill in the blank: The angle between two equal vectors in opposite directions is ________ degrees.
Fill in the blank: The direction of a vector in a plane can be specified by the angle it makes with the ________ axis.
Fill in the blank: The magnitude of a vector is always a ________ quantity.
Fill in the blank: The process of splitting a vector into its components is called ________.
State whether the following statement is true or false: Force is a vector quantity.
State whether the following statement is true or false: The magnitude of a vector is always positive.
State whether the following statement is true or false: The resultant of two vectors can be zero.
State whether the following statement is true or false: The resultant of two vectors is always greater than the magnitude of either vector.
