An ant is crawling along the edge of a round cup at a constant speed. Its movement is observed when it crawled half of the way.

Ant
An ant is crawling along the edge of a round cup at a constant speed. Its movement is observed when it crawled half of the way.

Correct!
Wrong answer. The speed doesn't change with time. The real solution is
Wrong answer. Carefully read the instructions.
Arrange
Correct.
You are wrong.
Alpha particle
Figure shows an alpha particle. Alpha particle is a helium nucleus. How many protons has an alpha particle? How many neutrons has an alpha particle? 
Correct!
The anwser is still not correct. Number of protons is 2 and the number of neutrons is also 2.
The answer is wrong. Try again.
Shape of the jet
A water jet maintains a constant the flow rate. Select the equation that describes the conservation of the flow rate. Points 1 and 2 are marked on the image. 
The answer is correct!
Again, you did not answer correctly.
We know: . Connection can be derived from the definition of the flow
Speed of the car
You must answer the question.
Radius: m.
Angle: .
Red circle
Watch the red circle from beginning to end movement. Which statement about the cycle is correct?
The movement from the initial position is
The answer is correct. The initial position is and the final is .
The answer is incorrect.
The initial position is and the final is . Move the circle is .
Circuit
Take a good look at the circuit in the photo. Predict how the lamps A, B and C will light, after connecting the upper left crocodile at the free connector of the left battery. The resistance of the wires is negligible.
Select from the following numbers in the table:

The answer is correct.
The answer is incorrect. Hint: The circuit is a seguence binding together two light bulbs and circuits in which the remaining bulbs are connected in parallel.
Tra again
The circuit is a sequence binding bulbs A and B, and the circuit in which C and D are bound in parallel. Therefore, through the A and B running full flow through C and D through only half the flow that is driven by batteries.
Ball in the water
The image below shows a submerged ball of oak wood. Images are marked with A, B and C.
Link each image with the appropriate name of the liquid.
A  B  C  
Well done!
Hmmm... think, when the body better swim?
1. Solids  2. Fluid  2. Fluid  
a) Liquid  b) Gases  



Car making a turn
We make a turn with a car, as shown in the image. With the help of the tools on the image, measure the radius of the loop.

m
While searching for the radius of the loop it is cruical to understand, that the loop is just a part of the circumference.
We expect some users to have issues with determining where is the radius of the circumference. Therefore we should help ourselves with the image of the circumference wirh the radius drawn in it. We take radius with values between 42 and 52 as correct.
Excellent! We can continue.
The result of the measurement is false. Correct result is m m.
Angle of a leaning object
Photo shows a pendant in a car during driving in the right corner. From the picture define angle, for which is the pendant away from the vertical.

Excellent! We can continue.
Result of the measurement is incorrect. Try again.
Result of the measurement is incorrect. The correct answer is .
Star card
Which constellation will ride exactly in the East on 5th of December at ?
Excellent, you are doing very well.
It's true.
The answer is not correct. Try again!
On 5th of December at 19:00, exactly in the East, there will be rise of the Orion constellation.