8G Science HW#19: Chapter 1.3

The rate at which velocity changes is called _____.

• Acceleration

• Magnitude

• Velocity

• Speed

The distance an object travels in one unit of time is called _____.

• Acceleration

• Magnitude

• Velocity

• Speed

How long it takes for an object to move or not is called ____.

• Time

• Speed

• Direction

• Distance

The course along which a person or thing is moving or must move to reach a destination is called ____.

• Time

• Speed

• Direction

• Distance

An amount of space between two things or people is called ____.

• Time

• Speed

• Direction

• Distance

The velocity of a moving body at starting is called ____.

• Final Velocity

• Initial Velocity

• Initial Acceleration

• Final Acceleration

The velocity at which an object ends with is called ____.

• Final Velocity

• Initial Velocity

• Initial Acceleration

• Final Acceleration

TRUE or FALSE:

To determine the acceleration of an object, you must calculate the change in speed during each unit of time.

• TRUE

• FALSE

A car advertisement states that a certain car can accelerate from rest to 90 km/hr in 9 seconds. Find the car's average acceleration?

• 90 km

• 90 km/hr

• 90 km/sec

• 10 km/ hr / sec

An eagle accelerates from 15 m/s to 22 m/s in 4 seconds. What is the eagle's average acceleration?

• $1.75\ \frac{m}{s^2}$

• $5.5\ \frac{m}{s^2}$

• $9.25\ \frac{m}{s^2}$

• $3.75\ \frac{m}{s^2}$