Forces & Newton's Laws

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This is often expressed as F=ma.

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NGSS.MS-PS2-2

Front

What is Newton's 3rd Law of Motion?

Back

For every action, there is an equal and opposite reaction.

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NGSS.MS-PS2-1

Front

What is gravity?

Back

Gravity is the force that attracts two bodies toward each other, commonly experienced as the force that pulls objects toward the Earth.

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NGSS.HS-PS2-4

Front

What does it mean for forces to be balanced?

Back

Balanced forces occur when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces occur when the total force acting on an object is not zero, causing the object to accelerate in the direction of the net force.

Tags

NGSS.MS-PS2-2

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

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NGSS.MS-PS2-2

Front

What is the formula for calculating force?

Back

Force (F) is calculated using the formula F = mass (m) × acceleration (a).

Tags

NGSS.MS-PS2-2

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight (W) = mass (m) × gravitational acceleration (g).

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NGSS.MS-PS2-4

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.