Final Exam Review

The motion of an object looks different to observers in different ____________________.

• Frames of reference

• Speeds

• Directions

• Distances

The SI unit for measuring ____________________ is the meter.

• Time

• Length

• Mass

• Temperature

The direction and length of a straight line from the starting point to the ending point of an object’s motion is ____________________.

• Speed

• Velocity

• Displacement

• Acceleration

Displacement and velocity are examples of ____________________ because they have both magnitude and direction.

• Scalars

• Vectors

• Units

• Forces

Speed is measured in units of ____________________.

• Meters per second

• Kilograms

• Newtons

• Joules

A car’s speedometer measures ____________________.

• Average speed

• Instantaneous speed

• Displacement

• Acceleration

A constant slope on a distance-time graph indicates ____________________ speed.

• Increasing

• Decreasing

• Constant

• Variable

The difference between speed and velocity is that velocity indicates the ____________________ of motion and speed does not.

• Magnitude

• Direction

• Distance

• Time

A distance-time graph indicates an object moves 20 km in 2 h. The average speed of the object is ____________________ km/h.

• 5

• 10

• 15

• 20

Because its ____________________ is always changing, an object moving in a circular path experiences a constant change in velocity.

• Speed

• Direction

• Distance

• Time