Answer the following question given this paragraph: When it comes to electric charges, opposites attract. In other words, positive and negative particles are attracted to each other. Like charges, on the other hand, repel each other, so two positive or two negative charges push apart from each other. The force of attraction or repulsion between charged particles is called electric force . It is illustrated in Figure below . The strength of electric force depends on the amount of electric charge and the distance between the charged particles. The larger the charge or the closer together the charges are, the greater is the electric force. Q: The force of attraction or repulsion between charged particles is called what? Choices: - magnetic force - cooling force - power force - electric force A:
electric force
Answer the following question given this paragraph: Metals are elements that can conduct electricity. They are one of three classes of elements (the other two classes are nonmetals and metalloids). Metals are by far the largest of the three classes. In fact, most elements are metals. All of the elements on the left side and in the middle of the periodic table, except for hydrogen, are metals. There are several different types of metals, including alkali metals in group 1 of the periodic table, alkaline Earth metals in group 2, and transition metals in groups 312. The majority of metals are transition metals. Q: The three classes of elements are metals, nonmetals, and what? Choices: - ionic compounds - molecules - atoms - metalloids A:
metalloids
Q: Answer the following question given this paragraph: Most of the sounds we hear reach our ears through the air, but sounds can also travel through liquids and solids. If you swim underwateror even submerge your ears in bathwaterany sounds you hear have traveled to your ears through the water. Some solids, including glass and metals, are very good at transmitting sounds. Foam rubber and heavy fabrics, on the other hand, tend to muffle sounds. They absorb rather than pass on the sound energy. Q: Where does most of the sound we hear travel through? Choices: - water - light - the ground - air A:
A: air
Question: Answer the following question given this paragraph: One trait invertebrates like the sponge and tarantula share is lack of a backbone. In fact, they don't have any bones at all. These are defining traits of all invertebrates. Some invertebrates have a skeleton, but it isn't made of bone. Many other traits of invertebrates show considerable diversity. Q: What traits do the sponge and tarantula share? Choices: - number of eyes - number of legs - lifespan - lack of backbone A:
Answer: lack of backbone
*Question*
Answer the following question given this paragraph: Hydrogen gas and oxygen gas are ignited to produce water. Q: What is produced when hydrogen gas and oxygen gas are ignited? Choices: - liquid - Fire - air - water A:
**Answer**
water
*Question*
Answer the following question given this paragraph: Mass can be destroyed to release energy. We do not ordinarily notice the increase or decrease in mass of an object because the change in mass is so small for a large increase in energy. The relativistic work-energy theorem is W net = E E 0 = mc 2 mc 2 = 1mc 2 . Relativistically,. Q: Mass can be destroyed to release what? Choices: - acceleration - mass - velocity - energy A:
**Answer**
energy