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cardi b
Questions (2)
Where do the forces that make atoms interact come from?(1 point)
Responses from the electric fields of charged subatomic
44 answers
243 views
A number cube is rolled. What is P(3 or an even number)
A: 1/2 B: 2/3 C:4/2 D: 1/6
5 answers
693 views
Answers (25)
What is the energy released during cellular respiration used for?(1 point) Responses cellular functions cellular functions to create more glucose to create more glucose photosynthesis photosynthesis it is released to the environment
A student is using a weak computer to design a logo. If the weak computer is the only constraint, should the student use the online version or downloaded version of a graphic design software?(1 point) Responses The online version, because the downloaded
Physical Science B Semester Exam 19 of 2919 of 29 Items Question Which forms of electromagnetic radiation are arranged in order of increasing energy? (1 point) Responses infrared, gamma rays, microwaves, ultraviolet infrared, gamma rays, microwaves,
Which statement about the effect of temperature on the speed of sound is correct?(1 point) Responses As temperature increases, the speed of sound increases because molecules in the medium collide more frequently. As temperature increases, the speed of
Physical Science B Semester Exam 17 of 2917 of 29 Items Question The first part shows a man producing a sound with a wavelength of 2.0 m and a frequency of 165 hertz. The speed calculated using the formula, wave speed = frequency times wavelength, is 330
A sound has a higher pitch than a bell. Which quantity must also be higher in this sound than in the bell?(1 point) Responses amplitude amplitude wavelength wavelength speed speed frequency
Physical Science B Semester Exam 15 of 2915 of 29 Items Question Which combination of frequencies would produce the lowest beat frequency?(1 point) Responses 500 Hz and 600 Hz 500 Hz and 600 Hz 10 Hz and 20 Hz 10 Hz and 20 Hz 10 Hz and 15 Hz 10 Hz and 15
What happens to sound waves from an object as it moves toward you?(1 point) Responses The pitch gets lower because of an increase in frequency. The pitch gets lower because of an increase in frequency. The pitch gets higher because of an increase in
Physical Science B Semester Exam 13 of 2913 of 29 Items Question Use the ray diagram for a lens to answer the question. The illustration shows a candle as an object to the left of a concave lens beyond focus on the left. One ray from the candle falls on
How do electromagnets cause a maglev train to levitate above the track? (1 point) Responses Magnets in the track and magnets in the bottom of the train repel each other. Magnets in the track and magnets in the bottom of the train repel each other. Magnets
How can a team of students work together creatively to design an electromagnet?(1 point) Responses They can research different kinds of electromagnets online, choose one they like the most, and copy the design of the electromagnet. They can research
How does the structure of atoms in a substance determine the substance’s conductivity?(1 point) Responses If an atom’s nucleus is positively charged, the substance is a good conductor. If an atom’s nucleus is positively charged, the substance is a
A student wants to use the equation for Coulomb’s Law to calculate the electric force between two charges. Which shows all of the information she will need to perform the calculation?
A student wants to use the equation for Coulomb’s Law to calculate the electric force between two charges. Which shows all of the information she will need to perform the calculation? F=k|q1q2|r2 (1 point) Responses Coulomb’s constant, the distance
Which scenario shows radiation?(1 point) Responses Eggs cook in a skillet. Eggs cook in a skillet. Eggs boil in a pot of water. Eggs boil in a pot of water. The air under a reading lamp is warmed. The air under a reading lamp is warmed. Air warmed by a
What is the relationship between heat and thermal conductors?(1 point) Responses Thermal conductors facilitate heat, the transfer of thermal energy. Thermal conductors facilitate heat, the transfer of thermal energy. Thermal conductors allow all of the
What is the best description of heat?(1 point) Responses the measure of the average kinetic energy of the particles in an object or substance the measure of the average kinetic energy of the particles in an object or substance the transfer of potential
What happens when thermal energy is applied to water?(1 point) Responses The water creates steam as soon as thermal energy is applied. The water creates steam as soon as thermal energy is applied. Its molecules gain kinetic energy. Its molecules gain
Physical Science B Semester Exam 4 of 294 of 29 Items Question Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point) Responses increasing the number of turns in the coil of wire increasing the number of
Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point) Responses increasing the number of turns in the coil of wire increasing the number of turns in the coil of wire increasing the distances between the
A bar magnet is held in place while another bar magnet is placed near it. The second bar magnet spins around and attaches to the first magnet on one end. Which statement is correct about the energy stored in the magnetic field? (1 point) Responses The
When two charged particles are moving toward each other, their velocities decrease until they eventually come to a stop. What happens afterward?(1 point) Responses They accelerate toward each other. They accelerate toward each other. They accelerate in
it's 7
thanks anon.
what do you mean ms sue
