Force, Motion, & Newton's Laws

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What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Formula: F = ma (Force = mass x acceleration).

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What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or state. For example, a ball at the top of a hill has potential energy because it can roll down.

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What is Inertia?

Back

Inertia is the tendency of an object to resist changes in its motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

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What is the relationship between mass and acceleration according to Newton's 2nd Law?

Back

According to Newton's 2nd Law, as the mass of an object increases, the acceleration decreases if the same force is applied.

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What is an example of an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal in size and direction, causing the object to accelerate. For example, pushing a stationary car.

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What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

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What does it mean when we say an object has 'more mass'?

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An object with more mass has more matter in it, which means it requires more force to change its motion compared to an object with less mass.

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What is an example of Newton's 1st Law of Motion?

Back

An example of Newton's 1st Law is a soccer ball that remains at rest until a player kicks it. It will continue to move in a straight line until acted upon by another force.

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What is the effect of friction on motion?

Back

Friction is a force that opposes motion. It slows down or stops moving objects, such as when you slide a book across a table.

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What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can be an increase or decrease in speed.