Viteza

Viteza

6th - 7th Grade

22 Qs

quiz-placeholder

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Viteza

Viteza

Assessment

Quiz

Physics

6th - 7th Grade

Practice Problem

Hard

Created by

Mihalcea Cristina

Used 63+ times

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22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Un corp se afla in miscare intr-un interval de timp dat, fata de un reper, daca:

ocupa aceeasi pozitie fata de reper, in acelasi interval de timp

este partial in miscare, pe durata miscarii

ocupa aceeasi pozitie pe durata miscarii

ocupa pozitii diferite fata de reper, in momente diferite din intervalul de timp considerat

2.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Legea miscarii rectilinii uniforme se scrie:

d=v/ Δt\Delta t

d=Δtvd=\frac{\Delta t}{v}

d=v1 +v2d=v_{1\ +}v_2

d=vΔtd=v\Delta t

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

O masina parcurge 27km intr-o jumatate de ora, iar o motocicleta parcurge 9000m in 10min. Vitezele medii ale celor doua vechicule se afla in relatia:

vmotocicleta > vmasina

vmotocicleta<v masina

vmotocicleta=vmasina

vitezele nu se pot compara

4.

FILL IN THE BLANK QUESTION

10 sec • 1 pt

Un corp se deplaseaza timp de 5minute avand viteza medie de 36km/h. Spatiul parcurs de corp este:

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

In timpul vacantei, Adrian a facut scufundari sub indrumarea unui instructor. El a coborat la adancimea de 24m cu o viteza medie de 12m/min. Calculeaza durata scufundarii.

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Daniel este pe malul unui rau si vede un un tren cu lungimea l=200m ce trece pe un pod cu lungimea L= 800m.
Baiatul a masurat timpul in care trenul traverseaza podul si a obtinut. Afla viteza medie a trenului.


 Δt=50\Delta t=50  

20m/s

72km/h

1,2km/min

62km/h

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

La un concurs de inot, la proba de 200m, Adi a realizat un timp de 3min20s. Calculeaza viteza medie.

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