Which is the KEY term associated with CONVECTION? A. Contact B. Waves C. Density differences D. Energy

Which of the following is NOT one of the three ways heat transfer occurs? A. Conduction B. Convection C. Radiation D. Insulation

Which is false about subatomic particles? The atoms of different elements have varying numbers of subatomic particles The nuclei of all oxygen atoms contain the same number of protons Both neutrons and protons have a mass of approximately 1 atomic mass unit/dalton Neutrons and electrons are located in different areas in an atom Protons have a negative charge and electrons have a positive charge

4. Will the number of nails picked up by an electromagnet be increased if more batteries are put in the circuit? IV: __

Which state of matter has a definite volume but no definite shape? A) Solid B) Liquid C) Gas D) Plasma

Which is an example of radiation? A) Metal spoon warming in soup B) Warm air rising in a room C) Sunlight warming your face D) Boiling water circulating in a pot

If gravity pulls objects toward each other, what happens to the force of gravity when two objects have more mass?

Why is it almost impossible to escape a black hole once you get too close?

An object begins at a position of -1.88m and ends at -4.27m What was its displacement? () m

8. What unit would you use to measure the following? Why? a. your height b. the mass of a pencil c. the amount of water in a glass

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.