Which of the following statements is true?(1 point) Responses
The density of water is 1 gram per milliliter, so objects with a relative density of 1 milliliter per gram will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will float.
The density of water is 1 gram per milliliter, so objects with a relative density less than 1 gram per liter will sink.
9 answers
The correct statement is: The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
Which of the following statements is true?(1 point) Responses
Changing the state of a material from solid to gas, for example, generally makes the material more dense.
The density of a material may differ as it changes state.
All physical properties depend on how much material you have.
Some physical properties, like mass, volume, and density, depend on how much material you have.
Changing the state of a material from solid to gas, for example, generally makes the material more dense.
The density of a material may differ as it changes state.
All physical properties depend on how much material you have.
Some physical properties, like mass, volume, and density, depend on how much material you have.
The correct statement is: Some physical properties, like mass, volume, and density, depend on how much material you have.
Which of the following correctly explains why an object floats on water?(1 point) Responses
An object that has less mass in the same amount of volume, is supported by the water underneath it.
An object that has less volume in the same amount of mass, is supported by the water underneath.
An object that has more tightly packed atoms than water is supported by the water underneath it.
An object that has less tightly packed atoms than water is not supported by the water underneath it.
An object that has less mass in the same amount of volume, is supported by the water underneath it.
An object that has less volume in the same amount of mass, is supported by the water underneath.
An object that has more tightly packed atoms than water is supported by the water underneath it.
An object that has less tightly packed atoms than water is not supported by the water underneath it.
The correct statement is: An object that has less mass in the same amount of volume, is supported by the water underneath it.
Which of the following are solvents? Select the two correct answers. (1 point) Responses
sand
fresh water
tea bag
table salt
rain water
sand
fresh water
tea bag
table salt
rain water
The correct answers are:
1) Fresh water
2) Rain water
1) Fresh water
2) Rain water
In 3–5 sentences, explain why electrical wires are often constructed from metal coated with rubber, and how that is similar to metal pans having rubber or plastic handles.(4 points)
Electrical wires are often constructed from metal coated with rubber to provide insulation and safety. Rubber is an excellent insulator that prevents the flow of electricity and protects against electric shocks. By coating the metal wires with rubber, the risk of short circuits or electrical fires is significantly reduced. Similarly, metal pans having rubber or plastic handles serve the same purpose of preventing heat from transferring to the handles, making them safe to touch and handle without burning oneself. In both cases, the rubber coating provides a protective barrier between the metal and external elements, ensuring safety and insulation.
1 answer