Which term best describes Styrofoam?
B. synthetic material
Which statement explains how heat causes materials to expand?
A. Higher temperatures increase the kinetic energy of the particles, which causes the particles to move more and take up more space.
Which statement about materials used as insulators and conductors is correct?
D. Conductors allow for more electric current than insulators.
How does a light bulb function as a resistor?
B. It blocks or decreases the electric current, changing the energy into the light it produces.
Which material listed would be the best choice as a conductor?
A. gold
A contractor selects heavier trusses for a house, increasing the load that the walls must support. Which change will the contractor need to make to the design?
D. increase the thickness of the wall material
Which term means “a charged atom that has either gained or lost a negative charge”?
B. Ion
Which method of transportation is most accessible in rural areas?
B. road
Which vehicle subsystem has the function of carrying the weight of the vehicle and the passengers, as well as withstanding forces imposed by braking and accelerating?
A. structual
Which subsystem of a car is responsible for making the ride less bumpy on a rough road?
A. suspence
Hope this helps connexus students <3!
anon would be right... but the questions are listed as well. it's easy to check if you have the same questions as jishka
Correct answers for connexxus… is correct. I just got done with my test. 100%
statement explains how heat causes material to expand
A. Lower temperatures decrease the kinetic energy of the particles which causes the particles to move less and take up more space.
B. High temperatures increase the kinetic energy of the particles which causes the particles to to pack closely together
C. Lower temperatures increase the kinetic energy of the particles which causes the particles to spread out.
D. How do temperatures increase the kinetic energy of particles which causes the particles to move more and take up more space
B. High temperatures increase the kinetic energy of the particles which causes the particles to pack closely together.
wrong
I apologize for the mistake in my previous response. The correct answer is:
B. Higher temperatures increase the kinetic energy of the particles, which causes the particles to move more and take up more space.