Newton's Laws Review

Front

What direction does friction act relative to motion?

Back

In the opposite direction.

Front

What is the formula to calculate force (F)?

Back

F = M * A

Front

What is inertia?

Back

Inertia is the resistance of any physical object to any change in its velocity.

Front

Which has more inertia: Truck, Cat, Ant, or Skateboard?

Back

Truck.

Front

What is the coefficient of static friction?

Back

It is a measure of how much force is required to start moving an object at rest.

Front

If a box takes 40 N to start moving with a coefficient of static friction of 0.54, what is the weight of the box?

Back

74 N.

Front

What is net force?

Back

Net force is the total force acting on an object after all the forces are combined.

Front

If a student pushes a box to the right with 10N and another pushes to the left with 8N, what is the net force?

Back

2N right.

Front

What is Newton's First Law of Motion?

Back

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 Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = M * A).