HPS Semester 2 Exam Review

Front

What is the formula to calculate the total resistance in a parallel circuit?

Back

The total resistance (R_total) in a parallel circuit is given by the formula: 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). It can be expressed as: V = I * R.

Front

What is the unit of electric current?

Back

The unit of electric current is the Ampere (A).

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed that a freely falling object eventually reaches when the resistance of the medium (like air) prevents further acceleration.

Front

What does it mean for forces to be balanced?

Back

Forces are balanced when the net force acting on an object is zero, resulting in no acceleration.

Front

What is the relationship between mass and weight?

Back

Weight (W) is the force exerted by gravity on an object and is calculated as W = m * g, where m is mass and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It can be positive (speeding up) or negative (slowing down).

Front

What is the significance of a velocity vs. time graph?

Back

A velocity vs. time graph shows how the velocity of an object changes over time. The slope of the graph represents acceleration.

Front

What is the formula for calculating acceleration from a velocity vs. time graph?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is drag force?

Back

Drag force is the resistance force experienced by an object moving through a fluid (like air or water), which opposes the object's motion.