Chapter 7 Review

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

• Distance

• Displacement

• Velocity

• Acceleration

Consider the graph shown below. Which description below is consistent with the graph?

• The object moves slowly at a constant speed and then faster at a constant speed.

• The object accelerates in the positive direction and then accelerates more rapidly.

• The object moves forward, changes direction and then accelerates more rapidly.

Consider the graph shown below. Which description below is consistent with the graph?

• The object accelerates in the positive direction and then in the negative direction.

• The object moves upwards, reaches its peak and then falls with an acceleration.

• The object moves in the positive direction and then moves in the negative direction.

What is the starting point of the object?

• 2 m

• 4 m

• 10 m

• 20 m

What is the average velocity of this object? Use slope equation.

• + 0.5 m/s

• -0.5 m/s

• + 2 m/s

• -2 m/s

Which one of the following graphs describes an object that is moving at a constant speed to the left (- direction)?

• a.

• b.

• c.

• d.

Which one of the following graphs describes an object that is at rest?

• a.

• b.

• c.

• d.

Which one of the following graphs describes an object that is moving at a constant speed to the right (+ direction)?

• a.

• b.

• c.

• d.

Which one of the following graphs describes an object that is moving to the right and slowing down?

• a.

• b.

• c.

• d.

What is the unit for velocity?

• m

• s

• m/s

• m/s/s