Quiz about Introduction to energy part 2

Question 1

If a skater is moving in a ramp where A is the highest point, B is midway point, C is the lowest point. Which point has the highest K.E?

Accepted Answer

Point C

Answer

Point A

Answer

Point B

Question 2

If a skater is moving in a ramp where A is the highest point, B is midway point, C is the lowest point. Which point has the highest P.E?

Accepted Answer

Point A

Answer

Point B

Answer

Point C

Question 3

If a skater is moving in a ramp where A is the highest point, B is midway point, C is the lowest point. Which point has the P.E equal K.E?

Accepted Answer

Point B

Answer

Point A

Answer

Point C

Question 4

Which point has the highest P.E?

Accepted Answer

1&5

Answer

1 only

Answer

2&4

Answer

3 only

Question 5

Which point has the highest K.E?

Accepted Answer

3 only

Answer

1 only

Answer

2&4

Answer

1&5

Question 6

Which point has the lowest K.E?

Accepted Answer

1&5

Answer

1 only

Answer

2&4

Answer

3 only

Question 7

Which point has the lowest P.E?

Accepted Answer

3 only

Answer

1 only

Answer

2&4

Answer

1&5

Question 8

Which point has the P.E= K.E?

Accepted Answer

2&4

Answer

1 only

Answer

3 only

Answer

1&5

Question 9

Why does Point 3 have the lowest P.E?

Accepted Answer

Because at this point, it has minimum height

Answer

because it has the maximum height

Answer

Because at this point, it has maximum speed

Answer

Because at this point, it has minimum speed

Question 10

Why does Point 3 have the highest K.E?

Accepted Answer

Because at this point, it has maximum speed

Answer

because it has the maximum height

Answer

Because at this point, it has minimum speed

Answer

Because at this point, it has minimum height

Question 11

Why does Point 1 and5 have the highest p.E?

Accepted Answer

because it has the maximum height

Answer

Because at this point, it has maximum speed

Answer

Because at this point, it has minimum speed

Answer

Because at this point, it has minimum height

Question 12

Mechanical energy is ........

Accepted Answer

Energy of motion plus energy of position

Answer

Energy of motion

Answer

Energy of position

Question 13

K.E + P.E at any point equal ...

Accepted Answer

Mechanical energy

Answer

Sound energy

Answer

Thermal energy

Answer

Electrical energy

Question 14

At which point does Mechanical energy equal K.E only ?

Accepted Answer

3

Answer

1&5

Answer

2&4

Answer

3&2

Question 15

At which point does Mechanical energy equal P.E only ?

Accepted Answer

1&5

Answer

3

Answer

2&4

Answer

3&2

Question 16

At which point does Mechanical energy equal P.E + K.E= 50+50 ?

Accepted Answer

2&4

Answer

1&5

Answer

3

Answer

3&2

Question 17

What is the measuring unit of energy?

Accepted Answer

Joule

Answer

m/s

Answer

Pascal

Answer

N

Question 18

What happens to M.E at point 3 in comparison to point 1?

Accepted Answer

M.Elvis conserved

Answer

M.E increases at point 3 in comparison to point 1

Answer

M.E decreases at point 3 in comparison to point 1

Question 19

M.E increases and decreases as K.E increases and decreases

Accepted Answer

False

Answer

True

Question 20

If K.E= 100 J, P.E equal 60 J. What is the mechanical energy?

Accepted Answer

160 J

Answer

40 J

Answer

40 N

Answer

160 N

Question 21

If P.Ev= 100 J, P.E equal 60 J. What is the mechanical energy?

Accepted Answer

160 J

Answer

40 J

Answer

40 N

Answer

160 N

Question 22

What happens to Mechanical energy in midway point in comparison to lowest point?

Accepted Answer

They have the same Mechanical energy if we neglected friction force

Answer

M.E in midway is higher than M.E in lowest point

Answer

M.E in midway is lower than M.E in lowest point

Question 23

If M.E = 250 J , K.E= 130 J. what is the P.E?

Accepted Answer

120 J

Answer

100J

Answer

380 J

Answer

100 J

Introduction to energy part 2

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