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WorksheetsSCIENCE GRADE 9 CHAPTER 5 PG
Total questions: 15
Worksheet time: 22mins
The charge of an electron is . . . .
positive
negative
neutral
both positive and negative
Two like charges will . . . .
neutralize each other.
repel each other.
must be neutrons.
attract each other.
An object becomes charged when the atoms in the object gain or lose . . . .
electrons
protons
neutrons
all of the above
The following options are applications of static electricity, except . . . .
Photocopying
Maglev Trains
Pollution and smoke control from factories
Painting cars to spread paint evenly
In which two arrangements do the rods experience a force of repulsion?
M and N
O and P
M and P
N and O
A cloth is used to rub an uncharged plastic rod. Both the rod and cloth become charged. Why does the plastic rod become negatively charged and the cloth become positively charged?
The rod gains electrons and the cloth gains positive charges
The rod gains loses and the cloth loses positive charges
The rod loses electrons and the cloth gains electrons
The rod gains electrons and the cloth loses electrons
The diagram shows a positively charged conducting sphere and a wire connected to earth. What happens when the wire is touched onto the sphere?
Electrons flow from earth to the sphere
Electrons flow from the sphere to earth
Positive charge flows from earth to the sphere
Positive charge flows from the sphere to earth
A balloon is rubbed against a student's hair and then touched to a wall. The balloon sticks to the wall due to . . . .
magnetic forces between the particles of the balloon and the particles of the wall
electrostatic forces between the particles of the balloon and the particles of the wall
magnetic forces between the particles of the wall
electrostatic forces between the particles of the balloon
Two isolated metal spheres are both negatively charged. The spheres are brought close to each other but do not touch. Which diagram shows the charge distribution in the spheres?
