Beta particles and alpha particles differ in __ atomic number only charge only mass only both mass and charge

An alpha particle has the same composition as a __ nucleus. hydrogen helium carbon nitrogen

Which of the following is FALSE about a beta particle? When a beta particle is emitted, the mass number is increased by one. When a beta particle is emitted, the mass number remains same. When a beta particle is emitted, the atomic number is increased by one. A beta particle is negatively charged.

Which of the following has the highest penetration power? Alpha particles Beta particles Gamma rays None of the choices

Which statement is false about alpha particles? They are positively charged. They have low penetration power. They have low ionizing power. It is nothing but a helium nucleus.

Select the correct answer from each drop-down menu. The subatomic particles called square are found in the nucleus of an atom.and square travel around them.

Select the correct answer. Which fact represents evidence for the big bang theory? A.Every object located in the universe emits radiation. B. The mass that makes up the universe consists of of 25% helium. 25% C. The Sun around which Earth revolves is not the biggest star in the universe. D.Human eyes cannot perceive all forms of electromagnetic radiation.

Food cooked in a microwave will brown and become crispy True False

Which statement accurately lists the arrangement of components found in a first-class lever? Fulcrum-resistance-force Fulcrum-force-resistance Resistance-fulcrum-force

(Lesson 1.01) A huge collection of gas, dust, and billions of stars held together by gravity describes a(n) asteroid belt. galaxy. planetary system. solar system.

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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.