Physics Unit 2 Pre-test

Front

What is the actual acceleration of Gravity?

Back

9.81 m/s^2

Front

Which law states that a bigger mass requires a stronger force to accelerate?

Back

Newton's Second Law

Front

What does it mean when we say 'the law of inertia'?

Back

It refers to Newton's First Law, which states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's First Law known as?

Back

The Law of Inertia

Front

Which of the following is not an acceleration? Riding your bike straight down the street at a constant speed, Applying the brakes as you approach an intersection, Turning your bike around a corner, Pedaling faster to beat a red light.

Back

Riding your bike straight down the street at a constant speed.

Front

What is the formula for Newton's Second Law?

Back

F = ma (Force equals mass times acceleration)

Front

What does acceleration mean in physics?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is the relationship between mass and acceleration according to Newton's Second Law?

Back

As mass increases, acceleration decreases for a given force.

Front

What is the Law of Universal Gravitation?

Back

It states that every point mass attracts every other point mass with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.