Questions and answers by

hsdfghsd

Questions (37)

Which scenario describes how students can work together creatively to explore electromagnets?(1 point)Responses Three students
1. 1 answer
2. 11 views
Students built two electromagnets. The electromagnets are the same except that one has 20 wire coils around its core, and the
1. 1 answer
2. 7 views
Imagine a string of holiday lights, with many bulbs connected to each other by wires. One bulb burns out, causing the bulbs next
1. 1 answer
2. 4 views
How do electrons flow through an electric circuit?(1 point)Responses The electrons flow out of the negative end of the battery,
1. 1 answer
2. 5 views
A flashlight has four 1.5-volt batteries. The bulb has a resistance of 2.4 ohms. What is the amperage of the circuit?V=IR (1
1. 1 answer
2. 6 views
The current in a circuit is halved. What happens to the resistance?V=IR (1 point) Responses The resistance stays the same. The
1. 1 answer
2. 12 views
Which analogy best describes amperage?(1 point)Responses diameter of a pipe through which water moves diameter of a pipe through
1. 1 answer
2. 8 views
Which of the following statements best describes the relationship between atoms and conductivity?(1 point)Responses Atoms with
1. 1 answer
2. 10 views
Which of the following best describes a direct current?(1 point)Responses an electrical current that flows in alternating
1. 1 answer
2. 5 views
Which of the following statements accurately reflects the relationship between force and distance in Coulomb’s Law?(1 point)Re
1. 1 answer
2. 5 views
In which of the following interactions will the amount of force between the two objects be the strongest?Interaction Charge on
1. 1 answer
2. 7 views
Which of the following interactions in the data set below will have an attractive electrical force?Interaction Object 1 Charge
1. 1 answer
2. 7 views
Observing a set of pith balls with positive charges, how does the distance between the pith balls affect the electric electrical
1. 1 answer
2. 6 views
Which of the following statements about electrical charges is true?(1 point)Responses Two negative charges attract each other.
1. 1 answer
2. 5 views
What happens when a cold spoon is placed in hot soup?(1 point)Responses The soup’s molecules have the same kinetic energy as
1. 1 answer
2. 5 views
How does a heater in one corner of a fish aquarium warm the whole aquarium?(1 point)Responses The heater warms the air above the
1. 1 answer
2. 4 views
5 of 95 of 9 ItemsQuestion What is the best description of the conclusion of a scientific investigation?(1 point) Responses The
1. 1 answer
2. 6 views
Why does an ice cube melt even in a cold glass of water?(1 point)Responses Thermal energy moves from the water to the ice cube.
1. 1 answer
2. 5 views
What happens when thermal energy is added to an ice cube?(1 point)Responses Its water molecules lose kinetic energy, so the ice
1. 1 answer
2. 5 views
What are you actually measuring when you take something's temperature?(1 point)Responses the average potential energy of the
1. 1 answer
2. 4 views
Which is the best description of radiation?(1 point)Responses transfer of thermal energy within a liquid transfer of thermal
1. 1 answer
2. 5 views
Which scenario shows conduction?(1 point)Responses Hot soup rises to the top of a pot. Hot soup rises to the top of a pot. Bowl
1. 1 answer
2. 5 views
Why does air in a room rise when it gains thermal energy from a heater? (1 point)Responses Its molecules move around more
1. 1 answer
2. 7 views
How does a simmering pot of spaghetti sauce illustrate convection currents?(1 point)Responses The pot is only simmering, so
1. 1 answer
2. 6 views
What is the relationship between a substance’s thermal energy and its kinetic energy?(1 point)Responses As the substance’s
1. 1 answer
2. 5 views
Why is Spanish the official language of 9 of the 13 nations of South America?(1 point ) Responses It is the original language of
1. 1 answer
2. 4 views
Which is a characteristic of gestational diabetes?(1 point) Responses chromosomal abnormalities chromosomal abnormalities high
1. 1 answer
2. 6 views
Why is prenatal care important throughout pregnancy?(1 point ) Responses It causes complications. It causes complications. It
1. 1 answer
2. 6 views
A video game player had the following scores: 287, 389, 287, 329, 295, 290, 397, 387, 365. What does the IQR indicate about this
1. 1 answer
2. 19 views
A video game player had the following scores: 287, 389, 287, 329, 295, 290, 397, 387, 365. What does the IQR indicate about this
1. 1 answer
2. 8 views
A stock analyst is comparing the interquartile range of the day’s stock prices of Stock A and Stock B. Stock A has an
1. 1 answer
2. 7 views
Calculate the 5-number summary of the skewed dataset 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 14, 16. Which of the following choices is
1. 1 answer
2. 12 views
QuestionCalculate the 5-number summary of the skewed dataset 15, 16, 16, 17, 17, 18, 18, 18, 19, 19, 29. When constructing the
1. 1 answer
2. 10 views
Use the standard deviation to compare the variability of the datasets. Round to the nearest hundredths.Dataset A: 11, 7, 12, 8,
1. 1 answer
2. 6 views
If the mean of a dataset is 59, what is the deviation of the data point at 43?(1 point)Responses 4 4 256 256 16 16 −16
1. 1 answer
2. 9 views
An over-the-counter drug cannot cure one of these.(1 point) Responses a cold a cold a sore throat a sore throat an STD an STD a
1. 1 answer
2. 5 views
The media often misrepresents this subject.(1 point) Responses parenthood parenthood illnesses illnesses relationships
1. 1 answer
2. 5 views