A load is a device that uses: a. Power b. Weight c. Outside source of cooling d. Resistance

What is the capacitance of three 100 microfarad capacitors connected in series? .30 microfarads 33.3 microfarads .33 microfarads 300 microfarads

When a current passes through a wire: a. It is measured in resistance b. It produces a magnetic field around the wire c. It causes a voltage increase d. It can be measured in watts If the current in a wire increases, the magnetic field around the wire will: a. Increase b. Decrease c. Disappear d. Change Polarity

Question: The __ temperatures of a substance are the points at which the substance changes its state.

When current passes through a conductor: A magnetic field is created The circuit is incomplete There is no voltage thru the conductor Electrons flow from the wire to the surrounding air

1. Inductance is the property of an electronic circuit that __ a. opposes any change in the applied voltage through that circuit. b. opposes any change in the current through that circuit. c. aids any change in the applied voltage through that circuit. d. aids any change in the current through that circuit.

Which of the following describes what happens as an object falls toward Earth? Acceleration increases. Gravity disappears. Mass increases. Acceleration decreases.

A car traveling 35.0m/s starts to accelerate at 3.00m/s^2 How far does this car travel after 400 seconds? 129 m 164 m 176 m 212 m

Which of the following is/are used to classify a star based on its temperature and luminosity? A) Hertzsprung -Russell diagram B) Parallax measurements C) Line spectra D) Blackbody spectrum

In the Atkinson and Shiffrin modal model information can be lost by both decay and interference at each stage. True False

Hot Questions

$\square $ Answer Bank KE: 1000.0 J PE: 3000.0 J KE: 0J $PE:4000.0J$ KE: 2000.0 J PE: 2000.0 J KE: 4000.0 J PE: 0J

Learning Log: How do you think you get something to have more kinetic energy?

If a UV light unit has four lamps in it, and each lamp is 7-watt, it is known as a __ 7-watt unit 28-watt unit 11-watt unit 3-watt unit

10. What is the mass of a meteorite that is traveling towards Earth at $1,760m/s$ with a momentum of $33,400kgm/s$

Where is the energy coming from in the lab (where does it start)? A Potential energy in the Cheeto B Potential energy in the water C Kinetic energy inside the water D Kinetic energy in the Cheeto

What should happen to the temperature of the water? A It stays the same B It goes down C It goes up

9. Your local weather report announces that the barometric pressure is 30.44 inHg. Convert this pressure to psi, atm torr, and Pa.

Express the temperature, 275.18 K in degrees Celsius. $548.33^{\circ }C$ $274.17^{\circ }C$ $2.03^{\circ }C$ $120.88^{\circ }C$ $22.78^{\circ }C$

Hubble's Law has led physicists and astronomers to the hypothesis that the universe is expanding. True False

Newton determined that the force of gravity on an object is proportional to its mass causing its mass to be canceled out (Newton's second law) and resulting in a constant acceleration. If the laws of physics are universal, then Newton should be able to apply his discoveries about gravity on Earth to the motion of the planets in our Solar System. Newton's third law says that for every force there is an equal reaction force in the opposite direction. What does this imply about the force of gravity associated with a person standing on the Earth? Choose one: A. The force of gravity on the person cancels out to zero. B. The Earth's gravity pulls downward on the person but also pushes upward on them. C. The Earth's gravity pulls downward on the person, and the person's gravity pulls upward on the Earth. D. There is twice as much gravitational force on the person than there would be if it weren't for Newton's third law.