Questions
121
According to Law of Magnets "Unlike poles ________ each other and like poles _______ each other".
Answer: attract, repel
122
When a magnet is suspended freely in air with the help of string, it aligns itself in _________ direction.
Answer: North-South
123
A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the
Answer: North pole is almost equal to the south pole.
124
In a bar magnet, magnetic power is
Answer: more that both ends of the magnet.
125
Which one of the following will allow electric current to pass through?
Answer: Iron Nail
126
Which one of the following statement is false?
Answer: Our body is a bad conductor of electricity.
127
___________ are materials that do not allow electric current to pass through them.
Answer: Insulators
128
Materials which allow current to pass through them easily are called?
Answer: Conductors
129
Electric Cell (Battery) as shown in the figure, pointer 'B' indicates ______________.
Answer: Negative Terminal
130
Electric Cell (Battery) as shown in the figure, pointer 'A' indicates ______________.
Answer: Positive Terminal
132
A ________ is an instrument used for observing objects from a hidden position.
Answer: periscope
135
The shape of a shadow depends on which of the following.
Answer: shape of the opaque object
136
A _______ eclipse occurs when earth comes between sun and moon in a straight line.
Answer: lunar
137
If we are able to see anything clearly through an object, then such an object is said to be a _______ object.
Answer: transparent
139
Objects that emit light on their own are called ___________
Answer: Luminous bodies
140
Motion of wheel of a car is an example of _________
Answer: circular motion
