Forces and Motion

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It acts in the opposite direction to the movement.

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NGSS.MS-PS3-5

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and in a straight line unless acted upon by an unbalanced force.

Front

What is speed?

Back

Speed is the distance traveled by an object in a given amount of time. It is a scalar quantity.

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NGSS.MS-PS3-1

Front

What is a balanced force?

Back

Balanced forces are two or more forces acting on an object that cancel each other out, resulting in no change in motion.

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NGSS.MS-PS2-2

Front

What is an unbalanced force?

Back

An unbalanced force occurs when the total force acting on an object is not zero, causing the object to accelerate.

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NGSS.MS-PS2-2

Front

What is gravity?

Back

Gravity is a 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 is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can be an increase or decrease in speed.

Front

What is the direction of friction?

Back

Friction acts in the opposite direction to the motion of an object.

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 (F=ma).

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NGSS.MS-PS2-2

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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NGSS.MS-PS2-1