Understanding Vectors, Scalars, and Velocity

What is the primary difference between vectors and scalars?

• Vectors have magnitude only.

• Scalars have both magnitude and direction.

• Vectors have both magnitude and direction.

• Scalars have direction only.

Why is displacement represented by the letter 'S' instead of 'D'?

• To differentiate it from distance.

• To avoid confusion with the derivative operator in calculus.

• Because 'S' stands for speed.

• Because 'S' is the first letter of displacement.

How is velocity different from speed?

• Speed includes direction.

• Velocity is a scalar quantity.

• Speed is always greater than velocity.

• Velocity includes direction.

What is the average velocity of Shantanu if he travels 5 km north in 1 hour?

• 10 km/h north

• 5 km/h north

• 10 km/h

• 5 km/h

Why is it important to specify direction when discussing velocity?

• Because velocity is a scalar quantity.

• To differentiate it from speed.

• Because direction affects the magnitude.

• To ensure it is a vector quantity.

What is the first step in converting kilometers per hour to meters per second?

• Divide by 3600 to convert hours to seconds.

• Multiply by 3600 to convert hours to seconds.

• Divide by 1000 to convert kilometers to meters.

• Multiply by 1000 to convert kilometers to meters.

How many meters are there in one kilometer?

• 1500 meters

• 1000 meters

• 500 meters

• 100 meters

What is the equivalent of 5 km/h in meters per second?

• 4.16 m/s

• 3.47 m/s

• 2.78 m/s

• 1.39 m/s

What is the purpose of dimensional analysis in unit conversion?

• To simplify calculations.

• To increase the number of units.

• To make calculations more complex.

• To ensure units cancel out correctly.

How many seconds are there in an hour?

• 600 seconds

• 1200 seconds

• 2400 seconds

• 3600 seconds