G

Which two atoms are elements that belong in period two in the periodic table?

• Atom 3 and Atom 4

• Atom 1 and Atom 4

• Atom 3 and Atom 2

• Atom 1 and Atom 2

Tags

NGSS.MS-PS1-1

Which two atoms are elements in the same group in the periodic table?

• Atom 3 and Atom 4

• Atom 1 and Atom 4

• Atom 3 and Atom 2

• Atom 1 and Atom 2

Which statement best describes the position of the two elements in the periodic table.

• The two elements are in the same period, with Mg the first element in the period table and Ca the last element

• The two elements are in the same group, with Mg just above Ca

• The two elements are side by side in the same period, with Ca to the left of Mg

• The two elements are in the same group, with Ca just below Mg

Tags

NGSS.MS-PS1-1

Based on the data, which number shows the correct location of the element with 2 valence electrons and 1 energy levels.

• 1

• 2

• 3

• 4

List the steps of the scientific method

d

e

f

c

b

a

Conduct experiment

Communicate results

Draw conclusions

Ask a question

Form a hypothesis

Analyze results

What is the acceleration due to gravity on Earth?

• 9.8 m/s^2

• 10 m/s^2

• 8.9 m/s^2

• 9.5 m/s^2

Which of the following is the universal gravitational constant?

What is the formula for gravitational force between two masses?

Tags

NGSS.HS-PS2-4

Which scientist formulated the law of universal gravitation?

• Isaac Newton

• Albert Einstein

• Galileo Galilei

• Niels Bohr

Tags

NGSS.MS-PS2-4

What is the effect of gravity on light?

• It bends light

• It speeds up light

• It slows down light

• It has no effect on light