Senior KG Science Student Questions

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Showing: All Grades / Science (1553 questions)

by BHAVIK CHAUHAN · Class 1

Why can't plants move from place to place like humans, birds and animals?

Science Living and Non-living Things 0 5 answers 100%
by PAARTH KHANNA · Class 6

Which of these processes are used to separate husk from grains?

Science Sorting and Separation of Materials 0 4 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

What property of a sound wave determines its pitch?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A wave has a frequency of 10 Hz and a wavelength of 2 m. What is the speed of the wave?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

When a dark grey solid element is heated, it changes directly into a purple gas without melting. What is this phase change called?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Why is aluminium unreactive with air under normal conditions?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which plant tissue is responsible for transporting water and minerals from the roots to the leaves?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which part of the cell contains the genetic material?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following correctly groups quantities into scalars (magnitude only) and vectors (magnitude and direction)?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Astronomers observe light from a distant galaxy and notice that its spectral lines are shifted toward longer wavelengths (redshifted). What conclusion can be drawn about the galaxy from this observation?

Science Other 0 0 answers 0%
by ADITYA RAJ · Class 5

Which part of the brain is mainly responsible for regulating heart rate and breathing?

Science Human Body and Health 0 3 answers 67%
by GIANSH GUPTA KHUNDKER · Class 9

An electric motor lifts a crate with a weight of 400 N vertically upward through a height of 5.0 meters. If this operation takes exactly 4.0 seconds, what is the useful mechanical power output of the motor?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which type of electromagnetic wave has a wavelength shorter than visible light but longer than X-rays, and is commonly used for sterilizing medical equipment?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Two resistors, one with a resistance of 3.0 Ω and another with a resistance of 6.0 Ω, are connected in parallel across a 12 V battery. What is the total current drawn from the battery by this parallel combination?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A student stands 165 meters away from a tall vertical wall and claps their hands loudly. If the speed of sound in air is 330 m/s, how much time elapses between the clap and the student hearing the echo?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A uniform meter rule is balanced horizontally at its midpoint pivot (the 50 cm mark). A 4.0 N weight is suspended from the 20 cm mark. What force must be applied downward at the 90 cm mark to maintain horizontal equilibrium?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

An astronaut transports a rock sample with a mass of 3.0 kg from Earth to the Moon. The gravitational field strength on Earth is 10 N/kg, and on the Moon, it is 1.6 N/kg. What are the mass and weight of the rock on the Moon?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which subatomic particle carries a negative charge and orbits the nucleus?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which separation method is most suitable for recovering pure water from a salt water solution?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

What type of energy conversion takes place when you rub your hands together?

Science Other 0 0 answers 0%

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