Fizika 1 Letnik Gimnazije Test May 2026

A car starts from rest and accelerates uniformly at ( 2 , \textm/s^2 ) for 5 seconds. Calculate: a) Final velocity
b) Distance traveled

Solution:
a) ( v = v_0 + a t = 0 + 2 \cdot 5 = 10 , \textm/s )
b) ( s = v_0 t + \frac12 a t^2 = 0 + 0.5 \cdot 2 \cdot 25 = 25 , \textm )

Most teachers follow a predictable format. A standard test lasts 45 to 60 minutes and contains three sections.

Example:
"Why does a passenger feel thrown forward when a bus suddenly brakes?"
Answer: Inertia (Newton’s first law) – the passenger’s body continues moving forward while the bus decelerates. fizika 1 letnik gimnazije test

Here is a realistic short test. Try solving it in 30 minutes.

1. (Unit conversion - 5 pts)
Express 250 cm² in m².
Answer: ( 0.025 , m^2 )

2. (Uniform motion - 10 pts)
A cyclist travels 15 km in 45 minutes. Calculate her average speed in m/s.
Answer: ( 15 , km = 15000 , m ), ( 45 , min = 2700 , s ). ( v = 15000/2700 \approx 5.56 , m/s ) A car starts from rest and accelerates uniformly

3. (Accelerated motion - 15 pts)
A train traveling at 30 m/s applies brakes and decelerates uniformly at -2 m/s² until it stops.
a) How long does it take to stop?
b) How far does it travel during braking?
Answers: a) ( t = (0 – 30)/(-2) = 15 , s ) b) ( s = 30·15 + 0.5·(-2)·15² = 450 – 225 = 225 , m )

4. (Newton’s second law - 10 pts)
A 4 kg box is pulled horizontally with a force of 20 N. Friction is 8 N. Calculate acceleration.
Answer: ( F_net = 20 – 8 = 12 , N ). ( a = F_net/m = 12/4 = 3 , m/s² )

5. (Graph interpretation - 10 pts)
Describe the motion of an object whose v-t graph shows: constant positive slope from t=0 to t=5 s, then horizontal line from t=5 to t=10 s.
Answer: From 0–5 s: uniformly accelerated motion; from 5–10 s: constant velocity motion. Most teachers follow a predictable format

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Navodila:

Poročilo naj vsebuje: cilj, oprema, postopek, meritve (tabele), izračune, napake in zaključek.

Topics: Kinematics (Uniform and Uniformly Accelerated Motion) & Dynamics (Newton's Laws) Time: 45 minutes Allowed: Calculator, Formula Sheet (if applicable)