8th Grade Mid Term Exam 2024

Front

Calculate the average speed of a boat that travels 600 meters in 40 seconds.

Back

Average Speed = Total Distance / Total Time = 600 m / 40 s = 15 m/s.

Front

What is the force that pulls two objects towards each other, and how does mass and distance affect it?

Back

Gravitational Attraction: The greater the mass, the greater the attraction; the further apart, the weaker the attraction.

Front

Where are metalloids located on the periodic table?

Back

Metalloids are located in the zigzag line on the periodic table.

Front

Which elements are found to the right of the zigzag line on the periodic table?

Back

Nonmetals are located to the right of the zigzag line.

Front

What evidence supported Wegener’s proposal of a supercontinent?

Back

Wegener's proposal was supported by rock, fossil, and climate data.

Front

Define average speed in physics.

Back

Average speed is the total distance traveled divided by the total time taken.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, typically found along the zigzag line in the periodic table.

Front

What is the significance of the zigzag line on the periodic table?

Back

The zigzag line separates metals from nonmetals and indicates the location of metalloids.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force increases with greater mass of the objects involved.