H203 Dynamics Flashcards

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1
Q

What is Newton’s First Law?

A

Newton’s First Law states that an object continues to be in its state of rest or in motion with a constant velocity unless acted upon by a resultant force.

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2
Q

What is Newton’s Second Law?

A

Newton’s Second Law states that the rate of change of momentum of a body is directly proportional to the resultant force acting on it and takes place in the direction of the resultant force.

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3
Q

What is Newton’s Third Law?

A

Newton’s Third Law states that when Body A exerts a force on Body B, the force exerted on Body A by Body B is equal in magnitude. Both forces are in opposite directions and are of the same kind.

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4
Q

Define mass of a body.

A

The mass of a body is the property of a body which resists change in motion.

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5
Q

Define weight of a body.

A

The weight of a body is the force acting on it due to a gravitational field.

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6
Q

Define linear momentum

A

Linear momentum of a body is defined as the product of its mass and its velocity.

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7
Q

What is the formula of the net force of a constant flowing mass?

A

F net = mass/time(change in velocity)

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8
Q

Define impulse.

A

Impulse is defined as the product of the force and the time duration of the impact.

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9
Q

State the principle of conservation of linear momentum.

A

The Principle of Conservation of Linear Momentum states that the total linear momentum of a system remains constant provided that no resultant external force acts on the system.

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10
Q

Define elastic collison.

A

An elastic collision is a collision in which the total kinetic energy of the colliding bodies is conserved.

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11
Q

Define inelastic collision.

A

An inelastic collision is a collision where kinetic energy is not conserved.

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12
Q

Define perfectly inelastic collision.

A

A perfectly inelastic collision is a collision where the colliding bodies will coalesce with one another and move off with the same velocity.

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