Practice Motion and Vectors

What is a scalar quantity?

• A scalar quantity is a type of vector.

• A scalar quantity is defined by its direction only.

• A scalar quantity has both magnitude and direction.

• A scalar quantity is a quantity that has only magnitude and no direction.

Which of the following is a vector quantity?

• Velocity

• Mass

• Speed

• Temperature

If an object is moving with constant speed, what can be said about its velocity?

• The velocity is always increasing.

• The velocity is constant only if the object moves in a straight line.

• The velocity is zero if the speed is constant.

• The velocity can change direction while speed remains constant.

What does acceleration measure?

• The distance traveled by an object.

• The rate of change of velocity over time.

• The force applied to an object.

• The speed of an object at a given moment.

Which of the following represents motion with constant acceleration?

• Straight line on a velocity-time graph

• Straight line on a position-time graph

• Curved line on a velocity-time graph

• Horizontal line on a position-time graph

If a car travels 100 meters in 5 seconds, what is its speed?

• 30 meters per second

• 15 meters per second

• 20 meters per second

• 25 meters per second

What is the formula for calculating average speed?

• Average Speed = Distance x Time

• Average Speed = Total Time / Total Distance

• Average Speed = Total Distance / Total Time

• Average Speed = Total Distance + Total Time

Which of the following is true about displacement?

• Displacement is a scalar quantity that only measures distance.

• Displacement is a vector quantity that includes direction.

• Displacement does not consider the starting point of an object.

• Displacement is always equal to the total distance traveled.

What is the unit of acceleration in the SI system?

• kilometers per hour (km/h)

• meters per second squared (m/s²)

• meters per second (m/s)

• feet per second squared (ft/s²)

If a ball is thrown upwards, what happens to its velocity at the highest point?

• The velocity becomes negative at the highest point.

• The velocity becomes zero at the highest point.

• The velocity increases at the highest point.

• The velocity remains constant throughout the motion.