Science Class 4th
101. An example of a simple machine is:
A) Stapler
B) Electric Generator
C) Steam engine
D) Electric Motor
102. _____ is produced by vibrating bodies.
A) Light
B) Heat
C) Sound
D) Degradation
103. Pleasant sound is called:
A) Music
B) Noise
C) Nuisance
D)Resonance
104. Unpleasant sound is called as:
A) Music
B) Noise
C) Nuisance
D) Resonance
105. Sound can travel in vacuum.
A) True
B) False
106. _______ turns its outer ear to capture sound waves.
A) Dog
B) Cats
C) Rabbits
D) Horse
107. Sound needs a medium to travel.
A) True
B) False
108. ______ don’t have ears.
A) Kangaroos
B) Hens
C) Snakes
D) Turtles
109. The pleasant effect of sound is called:
A) Music
B) Loud Sound
C) Low Sound
D) Noise
110. Noisy environment is due to:
A) Slow Wind
B) Unpleasant Sound
C) Music
D) Pleasant Sound
111. Sounds cannot travel in
A) Liquids
B) Solids
C) Vacuums
D) Gases
112. The flow of electricity is called:
A) Charge
B) Induction
C) Voltage
D) Current
113. The material through which electricity can pass is called:
A) Inductors
B) Conductors
C) Semi Conductors
D) Electrolyte
114. Gold is an example of:
A) Inductors
B) Conductors
C) Semi Conductors
D) Electrolyte
115. Such material through which current cannot pass is called as:
A) Insulators
B) Conductors
C) Semi Conductors
D) Electrolyte
116. Glass is a type of:
A) Insulators
B) Conductors
C) Semi Conductors
D) Electrolyte
117. The Path in which current flows is called:
A) Pathway
B) Electric Way
C) Circuit
D) None of the above
118. A _____ can break an electrical circuit.
A) Button
B) Key
C) Switch
D) Wire
119. A magnet attracts things made of:
A) Iron
B) Steel
C) Gold
D) Silver
120. There are _____ types of Magnets.
A) One
B) Two
C) Three
D) Four