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Identify the agent exerting the force, the object on which the force is acting and the effect of the force in the following situation
Squeezing out the juice from an orange.
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Identify the agent exerting the force, the object on which the force is acting and the effect of the force in the following situation
Taking out ointment from a medicinal tube.
Concept: undefined >> undefined
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Multiple choice question.
All kinds of matter
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Identify the agent exerting the force, the object on which the force is acting and the effect of the force in the following situation
A child jumping to a height.
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Multiple choice question.
A kind of matter which can sublime is
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Multiple choice question.
A substance which can change its state
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Define the term efficiency of a machine.
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Solve the following numerical problem.
Two horses pull a cart in the same direction with a force of 500 N each. Find the resultant force acting on the cart.
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Solve the following numerical problem.
Two force of 12 N and 25 N act on a body to the left-hand side, while another force of 35 N acts on it to the right-hand side. Find the resultant of the forces.
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Solve the following numerical problem.
Two persons are pushing a car with a force of 30 N and 70 N in opposite directions. Calculate the resultant force and its direction.
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Solve the following numerical problem.
The forces acting on a wooden block are shown in the figure given alongside. Find the resultant of the forces and the direction of the resultant force.
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State if the following statement is true or false. Correct the statement if it is false.
Friction wears down the parts of machi
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State if the following statement is true or false. Correct the statement if it is false.
Tires of vehicles are provided with grooved designs to decrease friction.
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Answer the following in a word or two or in a sentence.
A child tries to slide a wooden block on the top of a table, but she is unable to get a smooth movement. What material do you suggest she should use in between the block and the table to get a smooth movement?
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Answer the following in short.
Why do wrestlers rub powder on their hands before getting into the ring?
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Give a reason for the following.
Vehicles skid on muddy and wet roads. Suggest what type of tires can prevent skidding of vehicles?
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Give a reason for the following.
Boats and ships have streamlined shapes?
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Tick the most appropriate answer.
The force applied on a machine to do work is called the
Concept: undefined >> undefined
Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
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