Brainpop Acceleration Questions With Correct Answers.

What does speed measure? - Answer-How fast an object is going Which of the following can be used to measure an object's speed? - Answer-Miles per hour What does acceleration measure? - Answer-The rate at which speed or direction changes What is the difference between positive and negative acceleration? - Answer-Positive acceleration occurs when objects speed up; negative acceleration occurs when objects slow down Which of these is an example of acceleration? - Answer-A speeding car brakes to a stop Which of these statements is true? - Answer-Acceleration in the direction of motion speeds you up If you're sitting still in a chair reading this, what is your acceleration? - Answer-0 m/s/s When would acceleration increase most? - Answer-Rolling down a steep hill How does braking stop a bike? - Answer-It causes a quick negative acceleration against the bike's forward motion You're in a moving car. Which of the following changes would always mean there's been some acceleration? - Answer-A change in speed