Newton's Laws - Crash Course Physics

Front

What is inertia and how is it related to mass?

Back

Inertia is the resistance of an object to change its state of motion. It is directly related to mass; the greater the mass of an object, the greater its inertia.

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Front

What is the force of gravity also known as?

Back

The force of gravity is also known as weight.

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Front

State Newton's First Law of Motion.

Back

Newton's First Law states that an object in motion stays in motion and an object at rest stays at rest unless acted upon by an unbalanced force.

Front

What causes motion according to Newton's laws?

Back

Unbalanced forces cause motion.

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NGSS.MS-PS2-2

Front

How do you calculate acceleration using force and mass?

Back

Acceleration can be calculated using Newton's second law: a = F/m, where 'a' is acceleration, 'F' is force, and 'm' is mass.

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Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, which is calculated as the product of mass and the acceleration due to gravity (W = mg).

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Front

What is Newton's Second Law of Motion?

Back

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

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in the SI system is the Newton (N).

Front

If a car has a mass of 1000 kg and a force of 2000 N is applied, what is its acceleration?

Back

The acceleration of the car is 2 m/s², calculated using the formula a = F/m.

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NGSS.MS-PS2-2

Front

What is the significance of unbalanced forces in motion?

Back

Unbalanced forces result in a change in the motion of an object, causing it to accelerate, decelerate, or change direction.

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