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- 1. Multiple Choice
What happened during A to B point?not movingincreasing speed at a constant ratemoving at a constant speedmoving at 10 m/s2 acceleration - 2. Multiple Choice
A girl throws a ball straight up in the air. When does the ball accelerate down?
On the way up.
On the way down.
At the top.
All of the above
- 3. Multiple Choice
how much work done is applied when you lift a 2 N bag at a distance of 2 m? (work= F x D)
4 J
3 J
5 J
no work done
- 4. Multiple ChoiceThe Law of Conservation of Energy states thatenergy cannot be created nor destroyed, only transformed or transferredenergy can be destroyed but not createdenergy can be created but not destroyed
- 5. Multiple ChoiceHow much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?27 J18 J9 J2 J
- 6. Multiple Choice
At which position does the child on the swing have the most gravitational potential energy?
W
X
Y
Z
- 7. Multiple ChoiceWhy is solar energy considered renewable energy?It's cheaper than fossil fuelsThe sun's energy would not run out for billions of yearsSolar energy recharges batteriesAll of them
- 8. Multiple Choice
When two materials are rubbed together ,...…………………. transfer from one to another.
electrons
protons
neutrons
- 9. Multiple Choice
What is the definition of current?
The rate of flow of charge
A measure of the difference in energy
How difficult it is for electrons to flow
The rate of energy transfer
- 10. Multiple Choice
What is the function of a cell?
A conductor that connect the components together.
A method of opening or closing the circuit.
A source of electromotive force that drives electric charges around the circuit.
A load in which moving charges can do a useful job.
- 11. Multiple Choice
How to you calculate the total resistance in a series circuit?
R1 + R2+ R3
R1 - R2 - R3
1/R1 + 1/R2 + 1/R3
R1 = R2 = R3
- 12. Multiple ChoiceThe picture shows an electrical circuit. This circuit is a series circuit because:It has 3 light bulbs.The same current flows through all three light bulbs.It uses a single battery.The electrical current is divided between the three light bulbs.
- 13. Multiple Choiceall bulbs are lit equallythe two top bulbs are brighterthe single lower bulb is brighterthe single bulb does not light and the other two are dim
- Answer choicesTagsAnswer choicesTags