Energy+and+Forces

2) Frictional force always opposes motion - Magnetic force is in magnets ~ Hari
=3)Earth has gravitational force that pulls us down to the ground,while the moon only has a little gravitational force, so we will float on the moon instead ~ Yu Tong= = = =4)Friction force is the force which slow down or stop the moving object when the surface of the object rubs against another surface.~Brosnan Soh Ming Shi=

6) A force is a push or a pull. ~ Vicky
=**7) A force can change the shape of an object and speed up or slow down a moving object. ~Alyssa ^__^**=

**8) Magnetic force can act at a distance. ~ Dainese**

 * 9) Energy is neither created nor destroyed, it just converts to another form of energy. For example, the energy changes in a light bulb, __#|Electrical__ energy--> Light energy + Heat energy ~ S Kugan**


 * 10) Some types of energy are heat energy, light energy, nuclear energy, gravitational potential energy, chemical energy and kinetic energy.~ Wen Wu**


 * 11) There is a total of 4 energies (Gravitational Energy,Magnetic Energy,Frictional Energy And Elastic Spring Energy).~Benishia Angelin**

**12)Gravitational force can act from a distance.~Danne**

 * 13) Gravitational force is the force of attraction between two masses. ~ Qiaoting ^^**


 * 14)Frictional force is usually greater when an object moves on a rough surface than a smooth surface. -Pei Xin [:**

**17) Gravitational force is always a pull.** **18) Magnetic force can be an attraction of a magnet. ~Song Jinhua**
 * 15) A force can change the direction of a moving object. ~Yee Ling **
 * 16) Magnetic force is the force of attraction and repulsion exerted by magnets. ~Yee Ling **

**19)A force can make a stationary object more. ~ Wong Sin Set** **20)** ** A force can stop a moving object. ~ Wong Sin Set **

21) Frictional force can cause unwanted heat and wear and tear in objects. ~Erlisa 22) The gravitational potential energy of an object depends on the height at which it is raised. ~Audrey Khong 23) Chemical energy is found in food, fuel, batteries and plants. ~ Hongyi 24) Frictional force always opposes motion. ~ Aun Ali 25)Energy can be converted into other forms of energy.-Charlene L.V.;] 26)A force always involved when something happens.-Charlene L.V.  27)Gravitational force is acting on us all the time~Han Thit  28) The Earth always has the same pull on every object. If you drop a pencil or a piano, they will fall at the same speed; the moon has the same amount of pull whether there is a full moon or a new moon. ~Chian Xintong XD 29) Not only does the Earth's gravity(gravitational force) keep our planet orbiting the Sun, the Sun's gravity also pulls on us, ans the gravity of other planets has an affect on our obit. ~ Xintong :P   30)Sun is our main sources of energy.-wanwei 31)Frictional force and elastic spring force cannot act at a distance away.~ChenPeng 32) Gravitational force and Gravitational Potential energy are different. One is the force that acts on us while the other is the energy stored in an object above the ground~S Kugan