Mini-Quiz: Fundamental Forces Act at a Distance

1. What happens to the pull of gravitation as you get further from the Sun?

   It goes to zero at 1000 kmSorry, not correct. Try another button. It decreases as the square of the distanceThat is correct. You understand fundamental forces. It stays the sameGood try, but not right. Select another answer.

2. What is the similarity of electrical and magnetic forces?

   Opposites attractCorrect. Outstanding answer! They both require and electrical currentOops! Wrong answer. Re-read the question and try again. They are completely opposite of each otherSorry, not correct. Try another button.

3. If a strong nuclear force is so strong, how can a Uranium atom split?

   The diameter of its nucleus is larger than the range of the strong forceThat is correct. You understand fundamental forces. The strong force works with all atoms except UraniumGood try, but not right. Select another answer. Explosive neutrons are used to split the atomOops! Wrong answer. Re-read the question and try again.

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