GED Science : Newton's Second Law

Study concepts, example questions & explanations for GED Science

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Example Questions

Example Question #1 : Physics

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

Possible Answers:

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

When two cymbals collide, some kinetic energy is converted into sound

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

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

Correct answer:

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

Explanation:

Newton's Second Law is best represented as an equation, 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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