GED Science : Newton's Second Law

Study concepts, example questions & explanations for GED Science

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Example Questions

Example Question #1 :Ged Science

Which of the following best illustrates Newton's Second Law?

Possible Answers:

As a hammer hits a nail, the nail also exerts a force on the hammer

If an object is not accelerating, then the net force on it is zero

当两个钹碰撞,一些动能是converted into sound

A ball is rolled across a table and does not stop until it hits an area with friction

Correct answer:

If an object is not accelerating, then the net force on it is zero

Explanation:

牛顿第二定律是最好的表示为一个方程tion, in which the product of mass and acceleration is equal to net force:

By this principle, if there is zero acceleration, then the force must also be zero.

A non-zero acceleration must be present if there is a non-zero net force.

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