2.)A car driver accelerates to a speed of 35 mph and then takes her foot of the gas pedal.Even though she does not press the brake pedal at any time,she eventually rolls to a stop.which of the following most likely causes the car to come to a stop?
A.kinetic energy is transformed into thermal energy.***
B.electrical energy is transformed into potential energy.
C.potential energy is transformed into kinetic energy.
D.mechanical energy is transformed into chemical energy.
A?
3.)Shoe companies imbed unique designs on bottom of the sneakers they manufacture.what is the made n purpose?
A.)to increase potential energy
B.)to decrease friction
C.)increase friction
D.)to decrease potential energy
C?
4.)which of the following is the best example of transforming electromagnetic energy into thermal energy?
A.when trees absorb sunlight for photosynthesis.
B.when the interior of a car absorbs sunlight and warms up.***
C.when a solar panel absorbs sunlight to make electricity (I PICK THIS)
D.when a newspaper turns yellow from sitting in direct sunlight.
B?
its B A C B
1) B
2)A
3)C
4)B
100% with Connexus
B,A,C,B
Stay safe you guys😷😷😷
i send my condolences for thy enlightenment
AJ,
That helped me a lot!!!
I got 5/5 on my quick check!
- Crystal___Fox
p.s. find me on scratch @Crystal___FoxTV
yeah boyyyyyy🤑🤑🤑🤑🤑😷😷
For question 2, the most likely cause for the car to come to a stop is option A. Kinetic energy is transformed into thermal energy. When the driver takes her foot off the gas pedal, the car starts experiencing friction with the road and other external forces, which cause it to gradually slow down and come to a stop. This conversion of kinetic energy into thermal energy happens due to the frictional forces acting on the car.
For question 3, the purpose of the unique designs imbedded on the bottom of sneakers is to increase friction. Option C is correct. By increasing friction, these designs provide better traction and grip on various surfaces, reducing the chances of slipping or skidding while walking or running.
For question 4, the best example of transforming electromagnetic energy into thermal energy is option B. When the interior of a car absorbs sunlight and warms up, it is an example of the conversion of electromagnetic energy (sunlight) into thermal energy. The sunlight is absorbed by the car's surfaces, and this absorbed energy is converted into heat, increasing the temperature inside the car.
Pretty sure its
1) a
2) c
3) B
Explanation if you want to know why
1) Because there is no more forward acceleration of the car, the friction from the tires and the weight of the car will slow down. the the potential energy will eventually become thermal energy because the tires are in contact with the ground creating friction, which creates heat.
2)c, tire treads and shoe treads are always designed for friction. you can't increase nor decrease the potential energy of an object by designing it differently.
3)So, the car absorbs UV rays from the sun. UV is part of the electromagnetic spectrum. It is then dispersed int heat (thermal energy) which is why the car warms up.
The reason C is wrong is because electricity is electric energy, the electromagnetic.
Tips: research electromagnetic spectrum. (its not electricity)
Hope this helps you :^)