STAAR Science 2024

What is the net force?

• 3 N

• 3 N, right

• 17 N, right

• 3 N, left

Answer explanation

The net force is the vector sum of all forces acting on an object. In this case, the net force is 3 N directed to the right, making '3 N, right' the correct choice.

Tags

NGSS.MS-PS2-2

What is the net force?

• 20 N 

• 0 N 

• 400 N 

• 40 N 

Answer explanation

The net force is the vector sum of all forces acting on an object. If the forces balance out, the net force is 0 N. However, if there is a resultant force of 40 N in one direction, that is the net force.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A ____________ is a push or a pull on an object.

• friction

• force

• magnet

• gravity

Answer explanation

A force is defined as a push or pull acting on an object. Friction, magnet, and gravity are types of forces, but the term that directly fits the definition in the question is 'force'.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which liquid is the least dense?

• Oil

• Water

• Syrup

• Plastic bottle

Answer explanation

Oil is less dense than both water and syrup, making it the least dense liquid among the options provided. This is why oil floats on water.

Tags

NGSS.MS-PS1-2

• 4N 
• 6N 
• 10 N 
• 14 N 

Tags

NGSS.MS-PS2-2

change occurs when a substance changes in appearance, such as dissolving. change occurs when a new substance is formed, with evidence being precipitate formation.

• Physical

• Chemical

• Electrical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

I am only dull.

• Metals

• Nonmetals

• Metalloids

Answer explanation

Nonmetals are typically dull in appearance, unlike metals which are shiny. Metalloids can have mixed properties, but the statement 'I am only dull' clearly aligns with nonmetals.

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

What does the tilt of the earth cause?

• heating

• Seasons

• Atmosphere

• Years

Tags

NGSS.MS-ESS1-1

Earth's ________ on its axis causes day and night.

• rotation

• revolution

• phase

• comet

Tags

NGSS.MS-ESS1-1