Embedded Files
Introduction
Introduction
Forces are all around us. We will be looking at what they are, what they can do and how they affect the movement of objects.
Task 1: Know
Task 1: Know
Use look, cover, write check to learn the answers to the core questions and the keywords for this topic
Learn
Learn
Task 2: What do forces do?
Task 2: What do forces do?
Task 2b: Make notes that:
Explain what a force is
List the effecs forces can have on objects
State Newton's 3rd Law
Explain how to represent forces using arrows
Draw force diagrams to the forces acting on:
The paperclip in picture 1
The cork in picture 2
Picture 1
Picture 2
Task 3: Balanced and unbalanced forces
Task 3: Balanced and unbalanced forces
Task 3b: Make notes that:
Define balanced forces
Define unbalanced (resultant) force
State Newton's first law of motion
Explain in your own words what Newton's First Law of motion means for:
a static object
a moving object
Define acceleration
State Newton's Second Law
Calculate the size of the resultant force acting on the objects below and describe the effect this will have on thier motion.
Picture 3
0N - it will stay still
Picture 4
18N to the right - it will accelerate to the right
Picture 5
0N - it will keep flying in the same direction at the same speed
Task 3c: Complete the worksheet.
Click the arrow to check your answers
Task 1
Weight, friction, weight is bigger at the start.
Accelerate left (speed up)
Stay at constant speed
Slow down (accelerate right)
Task 2
45N left, speed up.
100,000N up, accelerate up.
0N, stay at constant speed.
118N down, accelerate down.
0N, will not move up or down.
Task 3d: Caculate the following:
A sprinter accelerates out of the blocks at 3.0m/s2 She has a mass of 70kg. What is the resultant force from her legs?
A passenger jet has mass of 32000kg and it has 200000N of thrust from each of it’s four engines. Calculate its acceleration.
F=ma so F=3 x 70 = 210N
a=F/m, so a = 80000/32000 = 25m/s2
Task 4: Hooke's law
Task 4: Hooke's law
Task 4b: Make notes that:
Write a method for the experiment
include a labelled diagram
Draw a sketch graph of the results
Define
Elastic limit
Hooke's law
Task 4c: Complete the worksheet
Task 5: Summary
Task 5: Summary
Task 5a: Explore the BBC bitesize material on this topic
Task 5c: Make a mindmap or other single page revision summary and add it to your revision folder.
Task 6: Check
Task 6: Check
Complete the quiz to check your understanding of this topic
Extend
Extend
Report abuse