# IGCSE Physics Paper-1: Specimen Questions with Answers 17 - 20 of 149

## Question number: 17

### Question

Find how much is this cylinder empty?

### Choices

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

a. | 40 | |

b. | 25 | |

c. | 64 | |

d. | 36 |

### Answer

d.### Explanation

Here in above figure we show that the cylinder contains water up to point 64.

And capacity of cylinder is 100 ml

Therefore volume of empty cylinder is,

## Question number: 18

### Question

A tunnel has a length of 50 km. A jeep takes 300 sec to travel between the two ends of the tunnel. What is average speed of the jeep?

### Choices

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

a. | 2.5 km/h | |

b. | 16.6 km/h | |

c. | 10 km/h | |

d. | 150 km/h |

### Answer

c.### Explanation

Here to find the average speed we can use the formula for this is given as,

Here we have time is 300 sec. Then we can write 5 min

## Question number: 19

### Question

man walk and shows start and end of the walk. How long did the walk take?

### Choices

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

a. | 45.7s | |

b. | 47.0 s | |

c. | 46.0s | |

d. | 46.5s |

### Answer

c.### Explanation

From above figure, we can note down the start time is 15.0 s and end time is 34.0 s. Therefore time for man walk is given as,

## Question number: 20

### Question

Find most stable arrangement to hold a flask of liquid.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

### Answer

c.### Explanation

In all others choices, the flask is keeping at some height. Thus they are not so stable.