Contact Forces and Non-Contact Forces Review

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will continue to move at a constant velocity unless acted upon by an unbalanced force.

Front

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, expressed as F=ma.

Front

What is Newton's 3rd Law of Motion?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

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Front

What is the definition of contact forces?

Back

Contact forces are forces that occur when two objects are physically touching each other, such as friction, tension, and normal force.

Front

What is the definition of non-contact forces?

Back

Non-contact forces are forces that act on an object without physical contact, such as gravitational force, magnetic force, and electrostatic force.

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Front

What is the role of a crumple zone in a vehicle?

Back

A crumple zone is designed to absorb and dissipate energy during a collision, reducing the force transmitted to the occupants.

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Front

How do action and reaction forces relate to collisions?

Back

In a collision, both objects exert equal and opposite forces on each other, as described by Newton's 3rd Law.

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NGSS.MS-PS2-1

Front

What is the formula for calculating force?

Back

Force is calculated using the formula F = ma, where F is force, m is mass, and a is acceleration.

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Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion, directly related to its mass.

Front

What is the significance of unbalanced forces?

Back

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

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