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Acceleration caused by unbalanced forces
KEy question:
KEy question:
What is acceleration and what causes it?
What is acceleration and what causes it?
Task 1 - Introduction video
Task 1 - Introduction video
Watch the video.
On the companion sheets, note down all the key words from the video. Then reduce the keywords to a list of 5 that you think are the most important
Task 2 - A dragster problem?
Task 2 - A dragster problem?
Think about how a dragster moves.
From standing still, the world record holding dragster reached its top speed of 544kph . It only took the the dragster 3.659 seconds to do this.
Use this information to help you answer the questions in task 2
Task 3 - Describing Acceleration
Task 3 - Describing Acceleration
Read the information below and use it to help you calculate the acceleration of the dragster.
Read the information below and use it to help you calculate the acceleration of the dragster.
Complete task 3 on the companion sheet
The acceleration of an object is a measure of how quickly its velocity changes.
A train accelerates in a straight line from rest. As it does, its velocity increases .
The brakes on a motorcycle are cause it to slow down. This is negative acceleration or deceleration.
Task 4 - Using this formula
Task 4 - Using this formula
The formula triangle
A formula triangle helps you to rearrange a formula. The formula triangle for acceleration (a), speed (s) and time (t) is shown below.
Cover the quantity that you are trying to work out, which gives the rearranged formula needed for the calculation
Therefore, speed = acceleration x time
and time = speed / acceleration
Complete the practise questions in task 4 of the companion sheet
Task 5 - Unbalanced forces
Task 5 - Unbalanced forces
What forces are acting on this fish?
What forces are acting on this fish?
There are no reference points.
Is he moving forward or backwards? Is he moving up or down?
On his own we do not have enough information.
Complete the task on the companion sheet
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