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3 years ago

Match the Vocabulary terms with their definitions.

Physics

2 answers:

madam [21]3 years ago

8 0

Your answer on number 3 is correct.

Number 4:”is the sum of an kinetic energy & potential energy” Number 2:is “kinetic energy caused by moving electrons” because Electrical Energy uses this,so Therfore,this answer is correct.”Energy stored in matter would be Number 1.hope this helped!

rjkz [21]3 years ago

6 0

Chemical energy: Energy stored in matter

Mechanical energy: Is the sum of an objects kinetic energy and potential energy

electrical energy: Kinetic energy that is caused by moving electrons

light energy: a kind of kinetic energy that moves in waves and can be seen.

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melamori03 [73]

As per Newton's II law we know that

$F = ma$

here

F = applied unbalanced force

m = mass of object

a = acceleration of object

now it is given that force F = 50 N North applied on block on earth due to which block will accelerate by 4 m/s^2

so here from above equation

$50 = m* 4$

$m = \frac{50}{4} = 12.5 kg$

Now we took another situation where block is placed on surface of moon and again force F = 25 N is applied on the block

So we will again use Newton's II law

$F = ma$

$25 = 12.5 * a$

$a = \frac{25}{12.5}$

$a = 2 m/s^2$

so block will accelerate on moon by acceleration 2 m/s^2

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3 years ago

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Masteriza [31]

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3 years ago

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A ball is thrown upward. At a height of 10 meters above the ground, the ball has a potential energy of 50 Joules (with the poten

Brilliant_brown [7]

Given that,

A ball is thrown upward. At a height of 10 meters above the ground, the ball has a potential energy of 50 Joules. It is moving upward with a kinetic energy of 50 Joules.

We need to find the maximum height h reached by the ball. Let at a height of 10 meters, it has a potential energy of 50 Joules. So,

$mgH=50\\\\mg=\dfrac{50}{h}\\\\mg=\dfrac{50}{10}\\\\mg=5\ N$ ........(1)

Let at a height of h m, it reaches to a maximum height. at this point, it has a total of 100 J of energy. So,

$mgh=50+50\\\\mgh=100\\\\h=\dfrac{100}{5}\\\\h=20\ m$

So, the correct option is (E) "h = 20 m".

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Montano1993 [528]

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Explanation:

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