Ks3 science

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crosbycasey56
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#1
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#1
Jack said that the ball could be dropped using an electromagnet
instead of dropping it by hand.
Explain why this would improve the investigation.

I need help i cant find a ks3 2010 science mark scheme
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uberteknik
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#2
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#2
(Original post by crosbycasey56)
Jack said that the ball could be dropped using an electromagnet
instead of dropping it by hand.
Explain why this would improve the investigation.

I need help i cant find a ks3 2010 science mark scheme
What do you want to know?

a) What the answer should be? (We don't have the full information for that unless you post the ful question.)

b) What the mark scheme says?
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crosbycasey56
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#3
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#3
(Original post by uberteknik)
What do you want to know?

a) What the answer should be? (We don't have the full information for that unless you post the ful question.)

b) What the mark scheme says?

what the mark scheme says
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uberteknik
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#4
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#4
(Original post by crosbycasey56)
what the mark scheme says
Can you briefly describe the experiment? Are you measuring height and time?

Are you using light gates?

What do you think the answer to the hand vs electromagnet question is?
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crosbycasey56
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#5
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#5
i think the answer is less chance of human error
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uberteknik
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#6
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#6
(Original post by crosbycasey56)
i think the answer is less chance of human error
Why?
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Black Rose
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#7
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#7
Need to be more specific
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crosbycasey56
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#8
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#8
because using electromagnet throws it at high speed
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uberteknik
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#9
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#9
(Original post by crosbycasey56)
because using electromagnet throws it at high speed
The electromagnet is holding the ball in place. When the magnet is turned off, the ball will fall under gravitational force.

a) The height of the ball can be measured more accurately and is consistent because the electromgnet can be fixed in position and not dependent on estimation of hand height or variations in the size of different experimeters hands.

b) The electromagnet releases the ball in a controlled and repeatable manner and because it is mechanical, is not dependent on how different operators might release the ball.
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crosbycasey56
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#10
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#10
(Original post by uberteknik)
The electromagnet is holding the ball in place. When the magnet is turned off, the ball will fall under gravitational force.

a) The height of the ball can be measured more accurately and is consistent because the electromgnet can be fixed in position and not dependent on estimation of hand height or variations in the size of different experimeters hands.

b) The electromagnet releases the ball in a controlled and repeatable manner and because it is mechanical, is not dependent on how different operators might release the ball.
thanks a lot
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