Science Midterm Exam Review 2024

Front

What force causes a ball to stop rolling on the floor?

Back

Friction is the force that opposes the motion of the ball, causing it to stop.

Front

How is a mixture of mixed nuts classified?

Back

A mixture of mixed nuts is classified as a Heterogeneous Mixture because the individual components can be seen and separated.

Front

What is a pure substance that is a compound?

Back

A pure substance that is a compound consists of two or more elements chemically combined in a fixed ratio.

Front

What is the reaction force when a baseball bat hits a ball with a force of 10 newtons?

Back

The reaction force is the force of the ball on the bat, which is equal in magnitude and opposite in direction to the force applied by the bat.

Front

What describes the forces in a tug-of-war when Team A is pulling left and Team B is pulling right, but both teams are moving to the right?

Back

The forces are unbalanced, and Team B is exerting a greater force.

Front

Define friction.

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed and can be easily distinguished.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

Explain Newton's Third Law of Motion.

Back

Newton's Third Law states that for every action, there is an equal and opposite reaction.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound, as it is made up of hydrogen and oxygen atoms chemically bonded together.