Fundamentals of Physics - practice for 12 year olds
Number of problems found: 236
- Tom can
Tom can run 3/4 of a mile in 1/8 of an hour. What is the unit rate in miles per hour? - Noel drives
Noel drives at an average speed of 52 miles per hour (mi/h) for 3 1/4 hours. How far has he traveled for 3 1/4 hours? - An airplane 3
An airplane descends at a rate of 2,700 feet per minute. Once the airplane starts its descent, what will be its elevation, in feet, after 3 1/5 minutes? - Feed rate
The feed rate of a drill is the distance it advances with each revolution. If a drill makes 320 rpm and drills a hole 2.625 inches deep in 1.8 minutes, what is the feed rate?
- The temperature 47
The temperature in a garden at midnight was −3 degrees Celsius. By 6 AM, the temperature was −8 degrees Celsius. What is the difference in the temperature? - Water 71
Water was heated to 80°c then allowed to cool at a rate of 6°c per minute. After how long was the temperature 8°C? - Balloon
If a ceiling balloon rises at 120 m (about 400 ft) each minute, what is the ceiling of an overcast deck of stratus clouds 1500 m (about 5000 ft) thick if the balloon disappears into the clouds in 5 minutes? Show your solution. - Konrad
Konrad coaches football. He cycles 3 km to the stadium at an average 12 km/h speed. How long does Konrad take to cycle to the stadium? - The temperature 45
The temperature in a field is 68°F at 4 PM. The temperature decreases by 4°F per hour. When will the temperature be 60°F?
- Water level
Between 9 PM and 6:36 AM, the water level in a swimming pool decreased by 6/35. Assuming that the water level decreased at a constant rate, how much did the water level drop each hour? - This morning 2
This morning the temperature outside was -4 degrees. This afternoon the temperature was 21 degrees warmer. What was the temperature this afternoon? - Unit price
A 4-ounce bottle of soap costs $1.37. What is the unit price, rounded to the nearest cent? - Iron ball 2
What is the mass of the iron ball with a diameter of 1,0 dm? The density of iron is 7870 kg/m³. . - Another 83290
Petra pushed a chair from one room to another with a force of 60N. She did 300 J of work. How far did Petra push the chair?
- Dimensions 83226
Calculate the weight of an iron bar 1.2 m long, whose cross-section is a trapezoid with dimensions a=10 cm c=8 cm and the distance between the bases v=6 cm. As we know, 1 cubic meter of iron weighs 7800 kg. - Liters 83211
We have 160 L of water at 67°C; how many liters of cold water at 18°C are needed to cool it to 39°C? - Warehouse 83041
At half past six in the evening, a truck left the warehouse at an average speed of 40 km/h. In 1.5 hours, a car drove behind him with an average speed of 70 km/h. How long and at what distance will the truck catch up from the warehouse? - Determine 83021
Determine the kinetic energy of a car with a mass of 800 kg if it travels at a speed of 10 m. s-1b, 20m. s-1 - Horizontal 83020
What work must be done to bring a body of mass of 2 kg lying on a smooth horizontal plane from rest to a speed of 2 m/s?
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