Physics problems with AI: step by step from “Given” to the answer
Photograph a problem or type its statement, choose a topic and the kind of help you want: a hint on where to start, a step-by-step solution, or a check of your own work. Laid out like a notebook: Given, SI, Find, Solution, Answer.
A block of mass 270 g has a volume of 100 cm³. Find the density of the substance and use the table to tell what the block is made of.
The preview image is an example. In the chat, attach a photo of your own problem.
Density is the mass per unit volume.
Opens with the “Next step” button
Opens with the “Next step” button
Opens with the “Next step” button
Solve a physics problem step by step (grade 7, topic: density). The statement is in the photo – I will attach it to the message. Lay it out as in a notebook: Given, SI, Find, Solution, Answer. After each step briefly explain why it is needed, and before the last calculation ask whether I can finish it myself.
The preview is an example for the chosen topic. The AI solves your own problem in the chat; attach the photo to your message. Free on the Starter plan.
Solve in the chatFormulas for grade 7 physics problems
Almost any grade 7 problem comes down to one or two formulas from this table. First find the quantity you are asked for, then the formula where it stands on the left.
| Quantity | Formula | SI unit | What to substitute |
|---|---|---|---|
| Speed | v = s / t | m/s | distance in metres, time in seconds |
| Density | ρ = m / V | kg/m³ | mass in kilograms, volume in cubic metres |
| Gravity force | F = m · g | N | g ≈ 9.8 N/kg; problems often use 10 |
| Pressure | p = F / S | Pa | force in newtons, area in square metres |
| Pressure of a liquid | p = ρ · g · h | Pa | h – depth in metres |
| Archimedes force | F = ρж · g · V | N | ρж – density of the liquid, V – volume of the submerged part |
| Work | A = F · s | J | force along the path and the path length |
| Power | N = A / t | W | work in joules, time in seconds |
| Efficiency | η = Aп / Aз · 100 % | % | useful and expended work |
How to solve physics problems: 5 steps
The same order works in grade 7 and grade 9. In the “Hint” mode the AI follows it and stops so that you can take the next step yourself.
- 1
Read and draw
What is happening in the problem? A schematic drawing helps you see the forces and directions.
block, scales, measuring cylinder - 2
Write “Given”
All the numbers with their symbols. The hidden data too: “from rest” means v₀ = 0.
m = 270 g - 3
Convert to SI
Grams into kilograms, minutes into seconds, centimetres into metres. This is where mistakes are most common.
270 g = 0.27 kg - 4
Formula, then numbers
First express the quantity you need in letters, then substitute the values with units.
ρ = m / V - 5
Check the answer
Are the units right? Is the number plausible? A cyclist at 500 m/s is a reason to recalculate.
2700 kg/m³ – aluminium
Kinematics problems: the main problem and the speed graph
The main problem of kinematics is to determine where a body is at any moment in time. For uniformly accelerated motion along a straight line, the formula x = x₀ + v₀t + at²/2 does this, and the speed changes according to v = v₀ + at.
The distance is easy to see on a speed graph: it is the area under the line. For a car that starts with an acceleration of 2 m/s², the speed grows to 10 m/s in 5 s, and the distance – the area of a triangle – is 25 m.
Physics problem help – free
Starter – 0 ₽
30 energy units. Hints, a step-by-step solution and a check of your solution are text requests, and you can also send a photo of the problem. For regular practice there is Lite at ₽690 (150 energy) and Base at ₽990 (200 energy).
Frequently asked questions
How do I solve grade 7 physics problems?
Write down “Given”, convert the quantities to SI, find the formula for the quantity you need, substitute the numbers and check the units. If you are stuck, choose the “Hint” mode – the AI will suggest only the next step.
Can I send a photo of a physics problem?
Yes, the chat accepts photos on the free Starter plan too. Photograph the whole statement, together with the drawing if there is one – the AI will read it and solve the problem step by step.
Will the AI check my solution?
Yes, the “Check mine” mode. Paste your solution: the AI will compare Given, the conversion to SI, the formulas and the calculations, and say at which step there is a mistake, without rewriting the solution from scratch.
How do I lay out a physics problem: Given, SI, Find?
On the left, “Given” in a column with the numbers, next to it “SI” with the conversion, and under the line “Find”. On the right is the solution: formula, substitution, calculation. At the bottom, the answer with units. The preview on this page is laid out the same way.
Will it help with kinematics problems in grade 9?
Yes: uniform and uniformly accelerated motion, speed graphs, free fall. The AI will explain which formula to choose and help you read a graph.
Are there solutions to problems from a textbook by number?
No, there is no database by problem number. Send the statement as text or as a photo – the AI will solve exactly that problem and explain each step, so that you can solve a similar one yourself.