Which of the following do scientists think might make up dark matter? Select the three correct answers.(2 points)
Responses
black holes
black holes
weakly interacting massive particles
weakly interacting massive particles
spiral galaxies
spiral galaxies
massive compact halo objects
massive compact halo objects
gamma rays
gamma rays
galaxy clusters
Scientists think that the three correct answers for what might make up dark matter are:
1) Weakly interacting massive particles (WIMPs)
2) Massive compact halo objects (MACHOs)
3) Galaxy clusters
Scientists think that three of the options might make up dark matter: weakly interacting massive particles, massive compact halo objects, and black holes.
To arrive at this answer, you can eliminate the options that are not considered as potential constituents of dark matter.
1. Spiral galaxies and galaxy clusters: While they are structures that can be affected by dark matter, they are not believed to be actual components of dark matter.
2. Gamma rays: Although gamma rays are high-energy electromagnetic radiation, they are not considered to be direct evidence of dark matter particles.
3. Black holes: While black holes have immense gravitational pull, they are not widely believed to be a major contributor to dark matter.
This leaves us with two remaining options: weakly interacting massive particles (WIMPs) and massive compact halo objects (MACHOs). WIMPs are hypothetical particles that interact through the weak nuclear force, while MACHOs refer to massive objects such as brown dwarfs or rogue planets that do not emit sufficient light to be directly observed.
Therefore, the three correct answers are: weakly interacting massive particles, massive compact halo objects, and black holes.
The three correct answers are:
1. Weakly interacting massive particles (WIMPs)
2. Massive compact halo objects (MACHOs)
3. Spiral galaxies
Dark matter ______ absorb light, ________ emit radiation, and ______ been observed directly.
Dark matter does not absorb light, does not emit radiation, and has not been observed directly.
Which are accurate statements about dark matter? Select the two correct answers.(1 point)
Responses
Scientists have hypotheses about dark matter but need more data to test their ideas.
Scientists have hypotheses about dark matter but need more data to test their ideas.
New data could cause scientists to change their hypotheses about dark matter.
New data could cause scientists to change their hypotheses about dark matter.
Scientists thoroughly understand what dark matter is and what it does.
Scientists thoroughly understand what dark matter is and what it does.
Scientists are not convinced that dark matter exists.
The two accurate statements about dark matter are:
1. Scientists have hypotheses about dark matter but need more data to test their ideas.
2. New data could cause scientists to change their hypotheses about dark matter.
Scientists do not thoroughly understand what dark matter is and what it does, and they are generally convinced that dark matter exists based on various lines of evidence.