This is for a quiz can you answer all of them..??
Which statement is true regarding the ping-pong ball at the bottom of the ramp in the experiment, “Rolling Along”?
Question 1 options:
No energy was involved in this experiment.
Only potential energy from the ball coming down the ramp will be given to the ping-pong ball at the bottom of the ramp.
The kinetic energy of the ball coming down the ramp will be given to the ping-pong ball at the bottom of the ramp.
All kinetic energy remains with the ball that is coming down the ramp- none of it transfers to the ping-pong ball at the bottom.
Question 2 (1 point)
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If a small car and a large truck were moving at the same rate of speed, what would be a true statement?
Question 2 options:
The car would have a shorter stopping distance.
The truck would have greater kinetic energy.
All choices shown
The truck’s mass is greater, therefore it will have a greater stopping distance
Question 3 (1 point)
Saved
When a child slides down a slide (if there is no friction and all of the mechanical energy is conserved) what would happen?
Question 3 options:
Potential energy would turn to Kinetic energy
The energy is destroyed
Kinetic energy would turn in to Potential energy
All energy stays the same
Question 4 (1 point)
Saved
When Is Mechanical Energy Not Conserved?
Question 4 options:
when the electricity is turned off
when you are in outer space
when it is cold outside
when there is significant friction or air resistance or other force affecting on the object.
Question 5 (1 point)
In which example would the most transfer of energy take place from Mechanical energy to Thermal (heat) energy?
Question 5 options:
When a child slides down a waterslide on an innertube
When a metal plate is pressing against a fast spinning piece of steel hard enough to stop it
When a feather falls from the sky
When a skydiver opens her parachute
Question 6 (1 point)
In the experiment, “Rolling Along”, which ball had the greater mass?
Question 6 options:
Golf ball
Neither ball had mass
The masses are the same
Ping-pong ball
Question 7 (1 point)
Conservation of Mechanical energy is defined as
Question 7 options:
potential energy added to kinetic energy
Energy of motion
The sum of the kinetic and potential energies of an object remains a constant value unless there are forces acting on the object that cause a loss of energy overall, such as friction and air resistance.
law of conservation of energy
Question 8 (1 point)
If a ball is rolling down the hill, what force is acting on this ball?
Question 8 options:
Elasticity
Wind energy
Chemical energy
Gravity
Question 9 (1 point)
Imagine a skateboarder rolling down a hill. As the rider travels down, the PE is turning into KE. But the rider is still slowing down. What causes this?
Question 9 options:
The rider is feeling the effects power transfer
The rider is feeling the effects of friction
The rider is feeling the effects Kinetic energy
The rider is feeling the effects potential energy
Question 10 (1 point)
What is true about the distance traveled by the ping-pong ball at the bottom of the ramp?
Question 10 options:
Neither mass nor speed had any impact on the distance traveled.
The greater the distance, the more energy the ping-pong ball had.
The greater the distance, the less energy the ping-pong ball had.
The ping-pong ball did not have any energy as it traveled short or long distances.
Answers: 3
Chemistry, 22.06.2019 11:00
Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the reaction arrow.part ao2-(aq)+h2o(l)< => express your answer as part of a chemical equation. identify all of the phases in your answer.o2-(aq)+h2o(l) < => oh-(aq)+oh-(aq)part bpredict whether the equilibrium lies to the left or to the right of the equation in previous part.h2o is a stronger acid than oh–, so the equilibrium lies to the right.h2o is a weaker acid than oh–, so the equilibrium lies to the left.h2o is a stronger acid than oh–, so the equilibrium lies to the left.h2o is a weaker acid than oh–, so the equilibrium lies to the right.part cch3cooh(aq)+hs? (aq) < => express your answer as part of a chemical equation. identify all of the phases in your answer.ch3cooh(aq)+hs-(aq) < => h2s(aq)+c2h3o2-(aq)h2s(aq)+c2h3o2-(aq)part dpredict whether the equilibrium lies to the left or to the right of the equation in previous part.ch3cooh is a weaker acid than h2s, so the equilibrium lies to the right.ch3cooh is a weaker acid than h2s, so the equilibrium lies to the left.ch3cooh is a stronger acid than h2s, so the equilibrium lies to the right.ch3cooh is a stronger acid than h2s, so the equilibrium lies to the left.part eno2-(aq)+h2o(l) < => express your answer as part of a chemical equation. identify all of the phases in your answer.no2-(aq)+h2o(l) < => part fpredict whether the equilibrium lies to the left or to the right of the equation in previous part.hno2 is a stronger acid than h2o, so the equilibrium lies to the right.hno2 is a weaker acid than h2o, so the equilibrium lies to the left.hno2 is a stronger acid than h2o, so the equilibrium lies to the left.hno2 is a weaker acid than h2o, so the equilibrium lies to the right.
Answers: 1
Chemistry, 22.06.2019 22:00
11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these
Answers: 2
Chemistry, 23.06.2019 05:20
Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species
Answers: 2
This is for a quiz can you answer all of them..??
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