Exploring Acceleration

The video tutorial explains the concept of acceleration, which is a change in speed or direction. It uses examples like runners at a track meet, cars, and jets to illustrate how acceleration occurs. The tutorial clarifies that acceleration is not just about speeding up but also includes slowing down or changing direction. It introduces the equation for calculating acceleration and provides a practical example with a race car. The video concludes by reinforcing the idea that acceleration involves any change in speed or direction.

What is acceleration in simple terms?

• A constant speed

• A change in direction only

• A change in speed or direction

• A decrease in speed only

Which of the following scenarios describes acceleration?

• A plane flying in a straight line at a constant speed

• A person walking at a steady pace

• A car maintaining a constant speed of 60 mph

• A car turning while maintaining the same speed

If a jet slows down due to a storm, is it still accelerating?

• No, because it is not speeding up

• Yes, because it is maintaining speed

• No, because it is slowing down

• Yes, because its speed is changing

How do you calculate acceleration?

• Initial speed minus final speed divided by time

• Final speed plus initial speed divided by time

• Initial speed plus final speed multiplied by time

• Final speed minus initial speed divided by time

A race car accelerates from 30 mph to 100 mph in 7 seconds. What is its acceleration?

• 15 miles per hour per second

• 10 miles per hour per second

• 20 miles per hour per second

• 5 miles per hour per second