Science Final Sample Questions

What is a group on the periodic table?

• A horizontal row of elements that have similar properties
• A vertical column of elements that have similar properties
• A horizontal row of elements that change from metals to nonmetals
• A vertical column of elements that change from metals to nonmetals

Which scientist discovered the neutron in the nucleus

• John Dalton
• James Chadwick
• Democritus
• J.J. Thomson

What is the only metal that is liquid at room temperature?

• Bromine
• Mercury
• Silicon
• Potassium

These elements are very and would want to bond by sharing electrons with other atoms. What are the elements in Group 17 called?

• Halogens
• Noble Gases
• Carbon Family
• Alkali Metals

What is the difference between endothermic and exothermic reaction?

• In an endothermic reaction, energy is released causing the surroundings to become cooler while an exothermic reaction absorbs energy causing the surroundings to become warmer.
• In an endothermic reaction, energy is absorbed causing the surroundings to become warmer while an exothermic reaction releases energy causing the surroundings to become cooler.
• In an endothermic reaction, energy is absorbed causing the surroundings to become cooler while an exothermic reaction releases energy causing the surroundings to become warmer.
• In an endothermic reaction, energy is transformed into heat energy while an exothermic reaction transforms energy to electrical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The law of conservation of mass states that matter can neither be created or destroyed, who was the person that discovered this law?

• Louis Pasteur
• Antoine François Fourcroy
• Antoine Lavoisier
• Blaise Pascal

Tags

NGSS.MS-PS1-5

When a chemical reaction occurs, the a substance gives off energy causing the surrounding to feel warmer. What type of reaction occurred?

• Endothermic reaction
• Exothermic reaction
• Neutral reaction
• No reaction

Tags

NGSS.MS-PS3-5

What is one key difference between Potential and Kinetic Energy?

• Potential Energy is energy in motion
• Kinetic Energy is energy that is stationary
• Potential Energy will never be transformed to Kinetic energy
• Kinetic Energy is energy in motion

Tags

NGSS.MS-PS3-5

The first law of motion states that an object at rest will remain at rest unless acted upon by a nonzero net force. An object moving at a constant velocity will continue moving at a constant unless acted upon by a nonzero net force. What is another name for Newton's 1st Law of Motion?

• Force
• Velocity
• Inertia
• Energy

Which Law of Motion states: " For every action there is an equal but opposite direction" ?

• 1st Law of Motion
• 3rd Law of Motion
• 2nd Law of Motion
• 4th Law of Motion

Tags

NGSS.MS-PS2-1