Motion with an unknown speed Quiz
10 questions · easy to harder · Algebra 1 · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
A car drives 150 km in 3 hours. What is its speed in km/h?- A) x = 503
- B) x = 150
- C) x = 50
2 Question 2
A runner runs 6 km in 30 minutes. What is his speed in km/h?Type the answer.
3 Question 3
A walker walks 5 km in 75 minutes. What is her speed in km/h?- A) x = 5
- B) x = 20
- C) x = 45
- D) x = 4
4 Question 4
A bus drives 40 km in 50 minutes. What is its speed in km/h?Type the answer.
5 Question 5
A truck takes 5 hours for a trip. A car takes 4 hours for the same trip. The car is 15 km/h faster than the truck. How fast is each one?Type the answer.
6 Question 6
A boat takes 6 hours for a trip. A ship takes 4 hours for the same trip. The ship is 8 km/h faster than the boat. How fast is each one?Type the answer.
7 Question 7
Two cyclists start 60 km apart and ride toward each other. One rides 4 km/h faster than the other. They meet after 2 hours. How fast is each one?- A) x = 13
- B) 14 km/h, 18 km/h
- C) x = 52
- D) x = 60
8 Question 8
Two walkers start 18 km apart and walk toward each other. One walks 2 km/h faster than the other. They meet after 2 hours. How fast is each one?Type the answer.
9 Question 9
Two cars start 100 km apart and drive toward each other. One drives 10 km/h faster than the other. They meet after 40 minutes. How fast is each one?- A) x = 300
- B) x = 70
- C) x = 20
- D) x = 100
10 Question 10
A skater skates 9 km in 20 minutes. What is her speed in km/h?Type the answer.