Physics Fundamentals: Quantities, Vectors, Motion, and Acceleration

Which of the following is a fundamental physical quantity?

• Force
• Length
• Velocity
• Acceleration

What is the main difference between a scalar and a vector quantity?

• Scalar has magnitude only, vector has both magnitude and direction
• Scalar has direction only, vector has both magnitude and direction
• Scalar and vector both have magnitude only
• Scalar and vector both have direction only

Which of the following is an example of a vector quantity?

• Mass
• Temperature
• Time
• Displacement

What is the SI unit for distance?

• Meter
• Second
• Kilogram
• Kelvin

How is displacement different from distance?

• Displacement is always greater than distance
• Displacement is a vector quantity while distance is a scalar quantity
• Displacement is measured in kilometers while distance is measured in meters
• Displacement is always equal to distance

If a person walks 3 km east, then 4 km north, what is their displacement?

• 7 km northeast
• 5 km northeast
• 1 km northeast
• 5 km north

What is the primary difference between speed and velocity?

• Speed is faster than velocity
• Velocity has direction, speed does not
• Speed is measured in m/s, velocity in km/h
• Velocity is always greater than speed

A car travels 120 km in 2 hours. What is its average speed?

• 60 km/h
• 30 km/h
• 120 km/h
• 240 km/h

Which of the following scenarios involves acceleration?

• A car moving at a constant speed of 60 km/h
• A book resting on a table
• A ball rolling down a hill, gaining speed
• An airplane cruising at a constant altitude and speed

What is acceleration?

• The total distance traveled
• The time taken to travel a certain distance
• The rate of change of velocity
• The speed of an object