Physics Chapter 5 Review pt 1

Front

What is the equation that relates acceleration to force and mass?

Back

F = ma

Front

What causes acceleration?

Back

Force

Front

A 5 kg object is subjected to a net force of 20 N. What is the acceleration of the object according to Newton's Second Law?

Back

4 m/s²

Front

Why does a sharp knife cut better than a dull knife?

Back

A sharp knife has a smaller surface area at the edge, allowing it to exert more pressure on the material being cut.

Front

Two objects of the same size and different masses are dropped at the same time. Which object has the greater force acting on it?

Back

The object with greater mass.

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.

Front

Define mass in physics.

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

How does increasing mass affect acceleration when force is constant?

Back

Increasing mass decreases acceleration.

Front

What is the relationship between pressure and surface area when cutting with a knife?

Back

Pressure is inversely proportional to surface area; a smaller surface area results in greater pressure.