Physics
Grade-7
Easy
Question
Direction : Calculate the missing term
m = 100 gm
v = 2 m/s
K.E. = ?
- 5 J
- 0.2 J
- 0.5 J
- 2 J
Hint:
0.2 J
The correct answer is: 0.2 J
KE =
mv2
![equals space 1 half space cross times space 100 over 1000 space cross times space left parenthesis 2 right parenthesis squared](data:image/png;base64,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)
![equals space 1 over 10 space cross times space 2
equals space 1 fifth](data:image/png;base64,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)
= 0.2 J
Related Questions to study
Physics
Identify the odd one out.
Identify the odd one out.
PhysicsGrade-7
Physics
The energy due to the motion of an object is ____.
The energy due to the motion of an object is ____.
PhysicsGrade-7
Physics
A person starts running at a speed of 30 cm/s. His weight is 1200 N. Considering the g as 10 m/s, what is its kinetic energy?
A person starts running at a speed of 30 cm/s. His weight is 1200 N. Considering the g as 10 m/s, what is its kinetic energy?
PhysicsGrade-7
Physics
A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster comes down at a speed of 10 m/s. What is its kinetic energy?
A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster comes down at a speed of 10 m/s. What is its kinetic energy?
PhysicsGrade-7
Physics
There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. The bell straps break, and it comes tumbling down at a speed of 15 m/s. What is its kinetic energy?
There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. The bell straps break, and it comes tumbling down at a speed of 15 m/s. What is its kinetic energy?
PhysicsGrade-7
Physics
A block is moving at a velocity of 40 m/s and has a mass of 1120 Kg. How much kinetic energy does the block have?
A block is moving at a velocity of 40 m/s and has a mass of 1120 Kg. How much kinetic energy does the block have?
PhysicsGrade-7
Physics
Direction : Calculate the missing term.
m = ?
v = 20 m/s
K.E. = 100 J
Direction : Calculate the missing term.
m = ?
v = 20 m/s
K.E. = 100 J
PhysicsGrade-7
Physics
Direction : Calculate the missing term.
m = 1500 g
v = 100 m/s
K.E. = ?
Direction : Calculate the missing term.
m = 1500 g
v = 100 m/s
K.E. = ?
PhysicsGrade-7
Physics
Direction : Calculate the missing term.
m = 25 Kg
v = 10 m/s
K.E. = ?
Direction : Calculate the missing term.
m = 25 Kg
v = 10 m/s
K.E. = ?
PhysicsGrade-7
Physics
Direction : Calculate the missing term.
m = 10 kg
K.E. = 250 J
v = ?
Direction : Calculate the missing term.
m = 10 kg
K.E. = 250 J
v = ?
PhysicsGrade-7
Physics
Identify the odd one out.
Identify the odd one out.
PhysicsGrade-7
Physics
What is wrong with the given formula?
![KE space equals space 2 mv squared](data:image/png;base64,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)
What is wrong with the given formula?
![KE space equals space 2 mv squared](data:image/png;base64,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)
PhysicsGrade-7
Physics
Direction : Is this an example of kinetic energy?
A person ready to dive
Direction : Is this an example of kinetic energy?
A person ready to dive
PhysicsGrade-7
Physics
Direction : Is this an example of kinetic energy?
Flying airplane
Direction : Is this an example of kinetic energy?
Flying airplane
PhysicsGrade-7
Physics
Direction : Is this an example of kinetic energy?
Throwing a ball
Direction : Is this an example of kinetic energy?
Throwing a ball
PhysicsGrade-7