In which of the following examples does the system have zero net torque? A waiter carrying a tray of glasses Two children going up and down on a see-saw A merry-go-round that is gradually slowing down The Earth orbiting the Sun

Which of the following elements is the principle component of Jupiter? A Hydrogen B Helium C Oxygen D Nitrogen

The cloud bands on Jupiter are the result of the Coriolis Effect. A True B False

Jupiter emits more energy from its interior than it receives from the Sun. A True B False

Which of the following has the highest surface temperature? A Venus B Earth C Mercury D Our Moon

If a car accelerates at 108 kilometers per hour squared, what is its acceleration in meters per minute squared? (1kilometer=1000meters)

Why did it take a long time to confirm the existence of galaxies outside of the Milky Way? Other galaxies were difficult to observe because they were very faint. Observational tools needed to detect other galaxies were not available. It was difficult to measure distances to far away objects and confirm that they were outside of the Milky Way. Galaxies are very far apart. Therefore, it took a long time to come across one in observations.

12. A balance is a piece of lab equipment that measures which of the following? a) weight in pounds b) mass in grams c) mass in meters d) Temperature in Celcius

Heat transfer is based on the fundamental laws of __ a) boiling point D b) heat flow c) mass D d) pressure

A projectile's horizontal velocity component (ignoring air resistance) A does not change. B changes most rapidly near the bottom of its trajectory. C changes at a variable rate. D changes at a constant rate.

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$\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.