science
Grade-11
Easy
Question
A bullet fired from a gun can pierce a target due to its ________
- Mechanical energy
- Heat energy
- Kinetic energy
- Acceleration
The correct answer is: Kinetic energy
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A moving hammer drives a nail into the wood. It has kinetic energy.
A moving hammer drives a nail into the wood. It has kinetic energy.
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. A student carries a bag weighing 50 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
. A student carries a bag weighing 50 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
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How much time will be required to perform 5200 J of work at the rate of 20 W?
How much time will be required to perform 5200 J of work at the rate of 20 W?
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If the velocity of a body is doubled its kinetic energy.
If the velocity of a body is doubled its kinetic energy.
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A ball is dropped from a tower height of 100 m.
A ball is dropped from a tower height of 100 m.
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The gravitational potential energy of an object is due to
The gravitational potential energy of an object is due to
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The energy possessed by an oscillating pendulum of a clock is
The energy possessed by an oscillating pendulum of a clock is
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The spring will have maximum potential energy when
The spring will have maximum potential energy when
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A 520kg rocket sled at rest is propelled along the ice by an engine developing a constant thrust of 12 000 N over a distance of 40 m.Assuming all of the work goes into motion, calculate its velocity after 40 m
A 520kg rocket sled at rest is propelled along the ice by an engine developing a constant thrust of 12 000 N over a distance of 40 m.Assuming all of the work goes into motion, calculate its velocity after 40 m
scienceGrade-11
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The product of force and displacement is known as
The product of force and displacement is known as
scienceGrade-11
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Calculate the kinetic energy of a 6.0kg bowling ball sliding at 5.0 m s–1
Calculate the kinetic energy of a 6.0kg bowling ball sliding at 5.0 m s–1
scienceGrade-11
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Name the scientist who discovered the law of heredity:
gregor mendel discovered the law of heredity.
Name the scientist who discovered the law of heredity:
scienceGrade-11
gregor mendel discovered the law of heredity.
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A gamete contains which of the following?
each gamete receives single allele of a gene.
A gamete contains which of the following?
scienceGrade-11
each gamete receives single allele of a gene.
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All types of mutations are transferable among generations.
Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.
All types of mutations are transferable among generations.
scienceGrade-11
Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.
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Mark the INCORRECT statement about mutation?
mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.
Mark the INCORRECT statement about mutation?
scienceGrade-11
mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.