Newtons Second Law of motion flashcard

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This can be expressed with the formula: F = ma (Force = mass x acceleration).

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Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time. It can involve an increase in speed, a decrease in speed (deceleration), or a change in direction.

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Front

What units are used to measure acceleration?

Back

Acceleration is measured in meters per second squared (m/s²).

Front

What does an unbalanced force cause?

Back

An unbalanced force causes an object to accelerate, meaning it will change its speed or direction.

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Front

What is inertia?

Back

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

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Front

How does mass affect acceleration?

Back

According to Newton's Second Law, the greater the mass of an object, the less it will accelerate when a given force is applied. This means that heavier objects require more force to achieve the same acceleration as lighter objects.

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Front

What happens to a hockey puck when a hockey stick applies force to it?

Back

When a hockey stick applies force to a resting puck, the puck will accelerate in the direction of the force applied by the stick.

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Front

What is the relationship between force, mass, and acceleration?

Back

The relationship is defined by Newton's Second Law: Force equals mass times acceleration (F = ma). This means that for a constant mass, an increase in force results in an increase in acceleration.

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Front

What is the effect of a net force of zero on an object?

Back

If the net force acting on an object is zero, the object will not accelerate. It will either remain at rest or continue to move at a constant velocity.

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Front

Can acceleration occur if an object is moving at a constant speed?

Back

Yes, acceleration can occur even if an object is moving at a constant speed if it changes direction. For example, a car turning a corner at a constant speed is accelerating because its direction is changing.