Motion in a Straight Line Quiz

What is the definition of motion?

• An object that is stationary

• An object at rest

• An object in a fixed position

• An object whose position changes with time

Which of the following is a vector quantity?

• Distance

• Displacement

• Time

• Speed

What is the relationship between distance and displacement in straight line motion?

• Distance is always greater than displacement

• Distance is always less than displacement

• Distance can be negative

• Distance and displacement are equal

What does the slope of a position-time graph represent?

• Acceleration

• Distance

• Velocity

• Displacement

If an object's velocity is decreasing, what can be said about its acceleration?

• It is always positive

• It is opposite to the direction of velocity

• It is in the same direction as velocity

• It is zero

Which equation relates final velocity, initial velocity, acceleration, and time?

• x = v_0 t + 1/2 at^2

• a = (v - v_0) / t

• v = v_0 + at

• x = vt

What is the acceleration due to gravity (g) in free fall motion?

• 0 m/s²

• Varies with altitude

• 9.8 m/s² downward

• 9.8 m/s² upward

In a velocity-time graph, what does a horizontal line indicate?

• Decreasing velocity

• Increasing velocity

• Zero acceleration

• Uniform acceleration

What is the stopping distance proportional to when a vehicle decelerates?

• Time taken

• Initial velocity

• Acceleration

• Initial velocity squared

Which of the following is true about speed and velocity?

• Velocity is always positive

• Speed can be negative

• Speed is a vector quantity

• Velocity can be negative