2nd 9 weeks Final Review

Front

What happens when a negatively charged balloon is brought near two cans?

Back

The negative charges in Can A move away from the balloon.

Front

How do you find total resistance, total current, and total voltage in a circuit?

Back

Use Ohm's Law: V = I * R. For the given circuit, V_T = 9 V, I_T = 6.3 A, R_T = 1.4 ohms.

Front

What must be true for work to be done?

Back

Force acts in the same direction as the distance traveled.

Front

If a person on a stationary skateboard throws a bowling ball with a velocity of 5.0 m/s, what is a possible speed of the person after the throw?

Back

1.5 m/s.

Front

What is the current going through a 90 ohm resistor if the voltage is 9V?

Back

0.1 amps.

Front

Define electric charge.

Back

Electric charge is a property of subatomic particles that causes them to experience a force when placed in an electromagnetic field.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

Front

What is the formula for calculating work done?

Back

Work done (W) = Force (F) x Distance (d) x cos(θ), where θ is the angle between the force and the direction of motion.

Front

Explain the concept of conservation of momentum.

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What is the relationship between voltage, current, and resistance?

Back

Voltage (V) = Current (I) x Resistance (R).