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1
How many main dimensions are there in our universe?
4 (3 dimensions of space and 1 dimension of time)
3 (2 dimensions of space and 1 dimension of time)
5 (2 dimensions of space and 3 dimension of time)
6 (3 dimensions of space and 3 dimension of time)
44% got this right
2
What is a black hole?
Black holes are regions in spacetime which have strong gravity
Black holes are regions in spacetime which have strong electrical energy
Black holes are regions in spacetime which have strong magnetism
Black holes are regions in spacetime which have strong radio emission
56% got this right
3
What is momentum?
How hard it is to stop a moving object
How hard it is to increase friction
How hard it is to reduce friction
How hard it is to see things
49% got this right
4
What is the formula for the Law of Universal Gravitation?
F = GMm/r^2
F = ma/r^3
G = 2ma/g^3
G = ma/g^3
37% got this right
5
A star of 10kg is orbited by a rock of 10kg, & the distance between the bodies are 10m, what is the force between them?
6.67*10^(-11)
5.17*10^(-12)
6.17*10^(-10)
7.17*10^(-12)
25% got this right
6
Choose a catalyst from the following?
Copper sulphate
Glucose
Hydrogen
Sulfuric acid
