IGCSE Physics Paper-1: Specimen Questions with Answers 7 - 9 of 109
Question number: 7
Question
If plane mirror is on a wall, which image will be formed?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | the right way up and smaller than the object |
|
| b. | the right way up and the same size as the object |
|
| c. | upside down and smaller than the object |
|
| d. | upside down and the same size as the object |
|
Answer
b.Explanation
The size of image formed by the plane mirror is always same as object and it is at same distance from mirror to object. So, here the right way up and same size as the object is the correct option.
Question number: 8
Question
What is the instrument called which measures temperature?
Instrument Used to Measure Temperature
In figure given instrument is used to measure temperature.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | ammeter |
|
| b. | barometer |
|
| c. | manometer |
|
| d. | thermometer |
|
Answer
d.Explanation
Here option ammeter, barometer and manometer are wrong
Because ammeter is use for current measurement And barometer and manometer is used to measure pressure
In this figure we show that thermometer instrument which is rod like device which use to measure temperature.
Question number: 9
Question
The diagram shows the speed-time graph for object at constant speed. Find distance covered in first 2 seconds.
The Plot of Speed ⟶ Time
In above figure we show graph of speed ⟶ time
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 6.0 m |
|
| b. | 3.0m |
|
| c. | 4.0m |
|
| d. | 1.5m |
|
Answer
c.Explanation
Here in given figure we show that an object moving at constant speed.
Here we want to find the distance traveled by the object in first 2 sec. Therefore from formula of speed,