Day 4 - SciNova

Enter your Name

Enter your Class and Division

Enter your House Name( Apple/Amazon/Google/Microsoft)

Maximum No of teeth present in 5 year old child ?

• 5

• 20

• 12

• 19

A factory releases untreated waste into a nearby river. Which long-term effect might occur?

• Increased oxygen level

• Growth of aquatic plants and death of fish

• Decrease in temperature of water

• Increase in biodiversity

Identify the process in picture ?

• Respiration

• Transpiration

• Photosynthesis

• None of the above

What was the first animal sent into space?

• Alfred the monkey

• Ursula the fish

• Laika the dog

• Fruit Flies

When a coin is tossed in the air, it travels upward, gradually slows down, momentarily reaches zero speed, then moves back downward with increasing speed. Which statement best explains this change in the coin’s motion?

• 
  The force of gravity causes the coin to change its velocity

• The coin’s inertia decreases on the way up and increases on the way down.

• The action-reaction force pair of gravity and the applied force cancel each other.

• The coin remains in its state of upward motion until the force of friction acts upon it.

What is the SI unit of force?

• N

• Kg

• Pa

• M

If an ambulance passes by you, its siren sounds different as it approaches and moves away. This is due to—

• Echo

• Resonance

• Doppler Effect

• Reflection