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PISA REVIEW TEST
Quiz by MARILOU MAPA
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Estimating the Distance to Mars
Global Context:
Space agencies plan missions to Mars, and one important factor is calculating the distance between Earth and Mars at different points in their orbits.
The average distance between Earth and Mars is 225 million kilometers. However, this distance varies as both planets orbit the Sun. The closest approach can be 54.6 million kilometers, while the farthest distance is 401 million kilometers.
1. A spacecraft travels to Mars at an average speed of 24,600 km/h. How long it would take to reach Mars in days if it were traveling the average distance of 225 million kilometers? Use the formula below.
Time = Distance / Speed
B. 381 days
5,535,000 days
219,512 days
A. 109 days
Exploring the Universe Through Mathematical Models
Global Context
An astrophysicist is working at a space research center. You and your team are trying to understand how the universe began and how galaxies, stars, and planets formed over billions of years. However, the universe is too vast and complex to observe directly.
o solve this challenge, you use mathematical models—equations and simulations—to represent the Big Bang Theory, the movement of galaxies, and the effects of gravity. These models help predict cosmic events, like how black holes form or how galaxies collide, without needing to physically observe every part of the universe.
Which of the following best explains why scientists use mathematical models to study the origin of the universe?
D) Space exploration does not require scientific explanations, only calculations.
B) Scientists need exact answers for all astronomical distances.
A) The universe is too complex to be studied without simplifying assumptions.
C) Mathematics replaces the need for direct observation in space exploration.
Estimating the Distance to Mars
Global Context:
Space agencies plan missions to Mars, and one important factor is calculating the distance between Earth and Mars at different points in their orbits.
The average distance between Earth and Mars is 225 million kilometers. However, this distance varies as both planets orbit the Sun. The closest approach can be 54.6 million kilometers, while the farthest distance is 401 million kilometers.
1. A spacecraft travels to Mars at an average speed of 24,600 km/h. How long it would take to reach Mars in days if it were traveling the average distance of 225 million kilometers? Use the formula below.
Time = Distance / Speed
Exploring the Universe Through Mathematical Models
Global Context
An astrophysicist is working at a space research center. You and your team are trying to understand how the universe began and how galaxies, stars, and planets formed over billions of years. However, the universe is too vast and complex to observe directly.
o solve this challenge, you use mathematical models—equations and simulations—to represent the Big Bang Theory, the movement of galaxies, and the effects of gravity. These models help predict cosmic events, like how black holes form or how galaxies collide, without needing to physically observe every part of the universe.
Which of the following best explains why scientists use mathematical models to study the origin of the universe?
