Newton's law of universal gravitation
Grade 11 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
A space probe feels a pull of 36 N from a planet. If its distance from the planet's center becomes 2 times as large, what pull does it feel, Ari?
A space probe feels a pull of 80 N from a planet. If its distance from the planet's center becomes 4 times as large, what pull does it feel, Bo?
A space probe feels a pull of 72 N from a planet. If its distance from the planet's center becomes 3 times as large, what pull does it feel, Esme?
Read this first
Use this
Orbit diagram (NASA fact sheets).
In the diagram, which distance goes into F = Gm₁m₂ ÷ r², Kira?
- The gap between their surfaces
- Earth's radius
- 384,400 km, center to center
In the diagram, which way does Earth's pull on the Moon point, Luz?
Use the picture in question 4.
- Along the Moon's path
- Toward Earth's center
- Away from Earth
One of two masses doubles at the same distance. What happens to the gravitational force between them, Milo?
- It doubles
- It halves
- It is 4 times as big
Both masses double at the same distance. What happens to the gravitational force between them, Noah?
- It is 4 times as big
- It doubles
- It stays the same, since both changed
Which pairs of objects attract each other by gravity, Ren?
- Every pair of objects with mass
- Planets and stars, but not small things
- Objects that are touching
Why don't two boxes on a table visibly pull together, Tala?
- Their pull on each other is far too small to notice
- Gravity doesn't act between small objects
- The table blocks gravity
G = 6.674 × 10⁻¹¹ N·m²/kg². What does its tiny size tell you, Zee?
- G is the same as g
- Gravity is strong between small objects
- Gravity between everyday masses is very weak