EFM Lesson 4 Quiz

A moving object will remain in motion at the same speed and direction unless a net force acts on it, is the basis of which of Newton's Laws of Motion?

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

The change in an object's motion depends on the sum of the forces on the object and what other factor?

• velocity

• mass

• speed

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The ease with which an object can change its motion is known as

• inertia

• gravity

• acceleration

• force

Acceleration of an object depends on what two things?

• force

• mass

• speed

• velocity

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If the forces on an object are ___________, the net force will cause a change in the object's speed or direction.

• balanced

• unbalanced

• inertia

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The acceleration of an object is equal to the net force on an object divided by the object's mass is the basis of which Newton's law?

• 1st law

• 2nd law

• 3rd law

• 4th law

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The first law of motion is also known as

• the law of inertia

• the law of velocity

• the law of force

• the law of speed

According to the 2nd law of motion, more mass equals

• smaller acceleration

• greater acceleration

• equal acceleration

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If the forces on an object at rest are balanced, so that the net force os zero, the object will

• start moving

• stay at rest

• continue moving

• change speed

If the forces on an object are balanced and the object is moving it will

• continue moving at the same speed and direction

• will change speed

• will change direction

• will stop moving