Physical Science Eoct

What is the volume of an object that has a density of 1.98 grams per centimeter cubed and a mass of 78 g?

• 154.44 cm ^ 3
• 154.44 g/cm ^ 3
• 39.4 cm ^ 3
• 39.4 g/cm ^ 3

The weight of a person on Earth is 6 times his or her weight on the Moon.  What type of force is responsible for a person's weight?

• Inertia
• Electromagnetic
• Gravitational
• Mechanical

Tags

NGSS.MS-PS2-4

A force of 20 N acts on a 5 kg block.  What is the acceleration? 

• 25 m/s
• 4 g
• 4 m/s/s
• 25 g

Tags

NGSS.MS-PS2-2

What force is required to accelerate a car at a rate of 2 m/s/s if the car has a mass of 3000 kg?

• 1500 N
• 1500 g
• 6000 g
• 6000 N

Tags

NGSS.MS-PS2-2

An unknown substance has a mass of 37 grams and a volume of 10 cubic centimeters.  What is the density of the unknown substance?

• 3.7 g
• 3.7 g/cm ^3
• 370 g
• 370 g/ cm ^3

A gold bar was found to have a mass of 45 g.  Gold has a density of 19.32 grams per cubic centimeters.  What is the volume of the gold bar?

• 869.4 g
• 2.32 cm ^ 3
• 2.32 g 
• 64 g

When atoms covalently bond, they:

• Gain protons
• Lose protons
• Share protons
• Share electrons

Tags

NGSS.HS-PS1-1

Which type of bond is responsible for atoms of pure silver to remain bonded?

• Covalent
  Covalent
• Ionic
• Metallic
• Hydrogen

NaCl is a compound that results from what kind of bonding?

• Covalent
• Ionic
• Hydrogen
• Metallic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

Which of the following is a physical property of gold?

• Gold is metallic with a yellow color.
• Gold has a density of 19.3 g/cm ^ 3
• Gold has a melting point of 1062 degrees Celsius
• All of these are physical properties of gold