4. A motorboat accelerates uniformly from a velocity of 6.5m/s to the west to a velocity of 1.5m/s to the west. If its acceleration was 2.7m/s^2 to the east, how far did it travel during the acceleration?
Matter cannot be created or destroyed. A. True B. False
What happens to a light wave when it travels from air to water? A Its color changes B Its intensity changes C Its speed changes D Its frequency changes
Where are the other elements made? In black holes In stars In the lab
The radiation that __ during the decay of radioactive atomic nuclei is known as gamma radiation. Multiple Choice: Which choice completes the text so that it conforms to the conventions of Standard English? occurs have occurred occur are occurring
5. Thursday What is the symbol used for the following units? Liter square Meter square Gram square
CER - Question Why does water form droplets on a penny instead of spreading out flat?
Match the symbol to the correct term. square x square v_(f) square S square t square a square v_(i) 1. initial velocity 2. final velocity 3. acceleration 4. displacement 5. time 6. speed
Which would scientists predict might happen due to solar flares? (1 point) radio navigation systerins and global positioning systems will be inaccurate high-frequency radio waves used for radio communication will be blocked electrical systems in satellites will fail power grid operations will go offline
Label the following parts of the atom: Protons Neutrons Electrons Nucleus
$\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.
