Breakdown of Термометр вимірює температуру.
Questions & Answers about Термометр вимірює температуру.
Because температуру is the accusative singular form, used for the direct object of the verb.
- температура = nominative singular, the dictionary form
- температуру = accusative singular
In this sentence, temperature is the thing being measured, so it must be in the accusative:
- Термометр = the subject
- вимірює = measures
- температуру = the object
This is very common with feminine nouns ending in -а:
-а usually changes to -у in the accusative singular.
вимірює is the 3rd person singular present tense form of вимірювати (to measure).
It agrees with термометр, which is singular:
- я вимірюю = I measure
- ти вимірюєш = you measure
- він / вона / воно вимірює = he / she / it measures
So Термометр вимірює... literally means The thermometer measures...