Date:____________
UNIT 3: Forces, Magnets and Springs
TOPIC: Forces everywhere
INSTRUCTIONS: Read Unit 3: Forces, Magnets and Springs from your SIMPLY SCIENCE 2 book and answer the following questions.
A. Mark TRUE or FALSE from following:
| | |TRUE / FALSE |
| |Forces are acting all around us wherever we look. | |
| |Each time we move our bodies we are using forces. | |
| |You exert a force each time you push, pull, twist or turn. | |
| |There are high forces and low forces. | |
| |You cannot measure forces. | |
| |In tug of war stronger team loses the match. | |
B. Fill in the Blanks.
1. ______________ and ________________ are called forces.
2. ______________ are acting all around us.
3. You can only ___________ the effects of forces they have.
The Term Paper on Porter Five Forces
... Where to find information for Porter’s 5 Forces analysis? Porter’s Five Forces Examples; Reports on Different Companies Introduction There ... effectively in the marketplace. Porter (1980a) defined the forces which drive competition, contending that the competitive environment ... competitive environment is changing turbulently. Are the five forces able to foresee industry expansion? Is it the ...
4. You can _______________ forces.
5. Each time we ____________ our bodies we are using _______________.
C. Rapid Fire.
a) Write down three things that a push or pull force can do. Give an example of each.
b) Forces can be used to twist and turn objects. How many examples of twist and turns being used you think of?
c) What are Forces?
Date:__________
UNIT 3: Forces, Magnets and Springs
TOPIC: How we use magnets?
A. Mark TRUE or FALSE from following:
|Sr. No | |TRUE / FALSE |
| |Magnets attract any thing made of metal. | |
| |Repel means to push away. | |
| |A Compass needle always points south. | |
| |A magnet has two poles, a north and a south pole. | |
| |If you drop a magnet, it may stop working. | |
B. Fill in the Blanks.
1. Like poles of two magnets _________________________.
2. Unlike poles of two magnets ________________________.
3. A pull by a magnet is called ________________________.
4. A push by a magnet is called __________________________.
C. Rapid Fire.
a) What are compasses?
b) What are uses of magnets?
c) What are Electromagnets?
Date:______________
UNIT 3: Forces, Magnets and Springs
TOPIC: Elastic bands and springs.
A. Mark TRUE or FALSE from following:
|Sr. No | |TRUE / FALSE |
| |Elastic bands can change its shape. | |
The Essay on Force And Perfectly Elastic Question
Question no 9) A package is dropped from a helicopter moving upward at 15m/s If it takes16 sec before the package strikes the ground, how high above the ground was the package when it was released if air resistance is negligible? Ans) 1000m Question no. 11) If A -B = 0, then the vectors A and B have equal magnitudes and are directed in the opposite directions from each other. Ans) False Question ...
| |Air trapped in container cannot be springy | |
| |Metal spring does not stretch like elastic band. | |
| |It is hard to stretch the big spring. | |
| |Elastic can come back to its original shape. | |
B. Fill in the Blanks.
1. Forces can change the _____________of things.
2. Some materials _________________ easily.
3. Like elastic band __________________ stretch when you pull them.
4. In a clock a ______________________spring is being used.
C. Rapid Fire.
a) Name the only four metals that are magnetic. How would you tell the difference between a magnet and magnetic material?
b) How would you make two magnets attract each other? Draw a labeled picture to show that you would do?
c) How many things can you think of which have a spring in them?