Forces STAAR Review

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined. It determines the object's acceleration.

Front

How do you calculate net force?

Back

Net force is calculated by adding all the forces acting on an object, taking into account their direction. If forces are in opposite directions, subtract the smaller force from the larger force.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

What does it mean if an object has an acceleration of 0 m/s²?

Back

If an object has an acceleration of 0 m/s², it means that the object is either at rest or moving at a constant velocity.

Front

What is the formula for calculating acceleration?

Back

The formula for calculating acceleration is a = F/m, where 'F' is the net force applied to the object and 'm' is the mass of the object.

Front

What is mass?

Back

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

Front

What is the relationship between mass and acceleration?

Back

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (a = F/m).

Front

What is a balanced force?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in a net force of 0 N, which means no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces are forces that are not equal and opposite, resulting in a net force greater than 0 N, causing an object to accelerate.