Forces & Motion Vocabulary Lesson

Match each of Newton's Laws with its definition.

• Newton's 1st Law

• (Law of Inertia) an object in motion tends to stay in motion & an object at rest stays at rest unless acted upon by an unbalanced force.

• Newton's 2nd Law

• (Law acceleration) Force = mass x acceleration

• Newton's 3rd Law

• (Law of action-reaction) For every action there is an equal and opposite reaction

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​ (a)   - the distance traveled in a specific time period

​ (b)   - change in velocity; speeding up, slowing down, or changing direction

​ (c)   - the speed of an object in a particular direction

• Speed
• Acceleration
• Velocity

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​ (a)   is the measure of the amount of matter in an object, while ​ (b)   is a measure of the gravitational force being exerted on an object.

A force that pulls objects towards each other is ​ (c)   , and the difference between two forces working against each other is ​ (d)  

• Mass
• weight
• gravity
• net force

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Organize each unit of measurement correctly.

Groups:

(a) Force

,

(b) Mass

,

(c) Acceleration

• Newtons (N)

• kilograms (kg)

• meters per second squared (m/s²)

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When an object changes position over time

• motion

• force

• friction

• inertia

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A force that opposes motion between two surfaces that are in contact

• motion

• force

• friction

• inertia

An object's resistance to a change in motion

• motion

• force

• friction

• inertia

A push or pull on an object

• motion

• force

• friction

• inertia

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