# IGCSE Physics Paper-1: Specimen Questions with Answers 33 - 34 of 149

## Question 33

### Question

MCQ▾If we cut cotton at two point (indicated by blue line) , then length of part 1, part 2 and part 3 of cotton are,

### Choices

Choice (4) | |
---|---|

a. | 24.6 cm, 15.6 cm, 2.5 cm |

b. | 1.6 cm, 7.5 cm, 4.1 cm |

c. | 1.2 cm, 2.6 cm, 3.9 cm |

d. | 3.4 cm, 13.2 cm, 4.1 cm |

### Answer

b.### Explanation

Here we show that cotton on the scale at starting point of rural is 2.4 cm and end point of rural is 15.6 cm.

There are two cut on the cotton

So there are total three part of cotton

Then length of part 1 is,

Length of part 2 is,

Length of part 3 is,

## Question 34

### Question

MCQ▾Find average speed of molecules in 2 boxes if they are filled with air and one is on heater 1 and the other is on heater 2.

### Choices

Choice (4) | |
---|---|

a. | Box X – Fast, Box Y – Slow |

b. | Box X – Fast, Box Y – Zero |

c. | Box X – Zero, Box Y – Fast |

d. | Box X – Slow, Box Y – Fast |

### Answer

a.### Explanation

Here box X is on heater 1 and the box Y is on heater 2.

Then molecule in box X is moving fast then Y. Because on heater due to heat the molecules move fast but heater 1 has more power than heater 2. Therefore molecules in X is move faster