Exam 1: Motion

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

• Displacement
• Distance
• Velocity
• Time

What is a runner's speed if he travels 12 meters in 4 seconds?

• 0.33 m/s
• 3 m/s
• 16 m/s
• 48 m/s

Which of the following is a unit of acceleration?

• km/s
• meters
• m/s²
• seconds

What is the equation for acceleration?

• a = d/t
• a = t/d
• a = (v_f - v_i)/t
• a = t/(v_f - v_i)

Suppose you INCREASE your walking speed from 1 m/s to 7 m/s in a time of 2 seconds. What is your acceleration?

• -3 m/s²
• 3 m/s²
• -4 m/s²
• 4 m/s²

When one object is travelling with a constant velocity, its acceleration will be 

• decreasing
• increasing
• constant
• zero

Calculate the speed of the object using this graph.

• Speed = 5 m/s
• Speed = 50 m/s
• Speed = 2 m/s
• Speed = 3 m/s

A toy car moves 8 m in 4 s at the constant velocity. What is the car’s velocity?

• 1 m/s

• 2 m/s

• 3 m/s

• 4 m/s

A car at accelerates from 0 m/s to 25 m/s in 5 seconds. What is the average acceleration of the car?

• 30 m/s²

• 50 m/s²

• 125 m/s²

• 5 m/s²

What is the unit of measurement used in physics for speed?

• seconds

• seconds per meter

• meters

• meters per second