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Enter your login details to start using our mobile-friendly educational games, simulations and puzzles. We have over 1000 interactive resources all designed with a focus on learning through fun.

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Net force ( Resultant )- the sum of all the forces acting on an object.

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Net force ( Resultant )- the sum of all the forces acting on an object.

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Newton's second law-The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. As the elephant skates the net force increases.

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Newton's second law-The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. As the elephant skates the net force increases.

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This large bank of more than 80 resources provides a gentle introduction to forces before moving on to balanced and unbalanced forces, types of forces, Newton's laws, free body diagrams, drag and air resistance, terminal velocity, pressure and moments.

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used what you knowledge  from Newton's first law to explain what you observed ?

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used what you knowledge  from Newton's first law to explain what you observed ?

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Enter your login details to start using our mobile-friendly educational games, simulations and puzzles. We have over 1000 interactive resources all designed with a focus on learning through fun.

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Enter your login details to start using our mobile-friendly educational games, simulations and puzzles. We have over 1000 interactive resources all designed with a focus on learning through fun.

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Calculate the net force ( Resultant )and draw the net force .Which forces are balance or unbalance? 

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Calculate the net force ( Resultant )and draw the net force .Which forces are balance or unbalance? 

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Inertia and mass,inertia of motion,inertia of motion,inertia of direction with animation#inertia

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DK Find Out! | Fun Facts for Kids on Animals, Earth, History and more!

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Visit DK Find Out! to learn about dinosaurs, space, animals, nature & more. Fun learning activities for kids with videos, quizzes & galleries at DKFindOut.com

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Practice - Calculate the net force ( Resultant )and draw the net force .Which forces are balance or unbalance? 

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Practice - Calculate the net force ( Resultant )and draw the net force .Which forces are balance or unbalance? 

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a force capable of balancing another force and producing equilibrium.

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a force capable of balancing another force and producing equilibrium.

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Did you notice the change in the ball's speed as you increased the force? If you notice that the ball moved faster, then you're right! This kind of relation between two variables is called "Direct Proportion". This means, as one increases, the other variable also increases.

Now look at the graph, how does it look? Does it look like the graph here, a straight line at an angle of about 45 degrees? If it doesn't, why don't you try out a few more values of force?

This kind of relationship is called "Linear Dependency". This means as one variable increases, the other by the same factor irrepective of the value of either variable. That means, in this case, whether force is 500N or 2500N, acceleration will increase by same factor of 0.1 (for a constant mass of 10Kg)

To understand this law, we will examine the effect of force and mass on acceleration individually. First, lets keep a constant mass of 10kg and vary the force.

Move the slider to assign a new value to force and click on "ROLL". Try this with 2-3 different values of force, then observe the graph.

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Did you notice the change in the ball's speed as you increased the force? If you notice that the ball moved faster, then you're right! This kind of relation between two variables is called "Direct Proportion". This means, as one increases, the other variable also increases.