Week 10:D2:   Momentum in complex systems.

Week 10:D2: Momentum in complex systems.

11th Grade

7 Qs

quiz-placeholder

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Week 10:D2:   Momentum in complex systems.

Week 10:D2: Momentum in complex systems.

Assessment

Quiz

Physics

11th Grade

Medium

Created by

Amira Saleh

Used 6+ times

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When a rocket expels fuel ............................

it gains mass and gains velocity.

it loses mass and loses velocity.

it loses mass but gains velocity.

it gains mass but loses velocity.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The expelled fuel carries .............

momentum in opposite direction, while the rocket gains momentum in the same direction.

momentum in one direction, and the rocket gains momentum in the same direction.

momentum in one direction, while the rocket gains momentum in the opposite direction.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

According to the law of conservation of momentum, the total momentum of the system ........................... must remain .....................

(rocket only ), constant

(rocket + expelled fuel), constant

(rocket + expelled fuel + gasses ), constant

( expelled fuel only ), constant

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

As the rocket burns fuel and expels it ......... at high velocity, the rocket moves .............

Forward, forward.

backward, backward

forward, backward,

backward, forward.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The momentum .........by the fuel is exactly matched by the momentum .............. by the rocket

lost, gained

gained, gained

lost, lost

gained, lost

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Even though the rocket’s mass ............, its velocity ................. to maintain .................momentum in the absence of external forces.

decreases, constant, constant

increases , increases, constant

decreases, increases, constant

constant, increases, constant

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If the rocket initial mass is 1500 kg (including fuel) in deep space, and it expels fuel at a rate of 5 kg/s , and the rocket is initially moving at 10 m/s. What is the mass of the fuel.

2 kg

150 kg

0.5 kg

50 kg