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Physics 9 Chapter 6 - Work and Energy - 15
1.
Which type of reactions take place in sun?
a) Chemical reactions
b) Biological reactions
c) Physical reactions
d) Nuclear reactions
2.
Which of the following is CORRECT about energy?
a) The product of force and displacement is called energy
b) Energy cannot be converted into other forms
c) Energy can be converted into other forms
d) Energy can be destroyed
3.
Which of the following is CORRECT about energy?
a) Energy can be destroyed
b) Energy cannot be converted into other forms
c) The product of force and displacement is called energy
d) Energy cannot be destroyed
4.
Which energy is used in the process of rubbing hands?
a) Sound energy
b) Light energy
c) Muscular energy
d) Chemical energy
5.
Which energy is produced in the process of rubbing hands?
a) Chemical energy
b) Light energy
c) Heat energy
d) Sound energy
6.
In the process of rubbing hands, which energy is converted into heat energy?
a) Sound energy
b) Mechanical energy
c) Light energy
d) Chemical energy
7.
In the process of rubbing hands, into which energy is mechanical energy is converted?
a) Chemical energy
b) Heat energy
c) Light energy
d) Sound energy
8.
Which energy causes water to evaporate from the surface to form water vapours?
a) Chemical energy
b) Thermal energy
c) Sound energy
d) Light energy
9.
Which energy changes into kinetic energy as the rain falls?
a) Sound energy
b) Potential energy
c) Chemical energy
d) Light energy
10.
Into which energy, potential energy changes to as the rain falls?
a) Chemical energy
b) Kinetic energy
c) Light energy
d) Sound energy
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