PSci Fall 23 Final

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another. It can be affected by the materials involved and the surface texture.

Front

How does the surface texture affect friction?

Back

Smoother surfaces tend to have less friction, while rougher surfaces have more friction.

Front

What is gravity?

Back

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

Front

What two factors does gravity depend on?

Back

Gravity depends on mass and distance.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What are the steps of the scientific method?

Back

1. Make an observation 2. Form a hypothesis 3. Conduct experiments 4. Collect data 5. Analyze results 6. Draw conclusions.

Front

What is a hypothesis?

Back

A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is a base in chemistry?

Back

A base is a substance that accepts protons or donates electron pairs in reactions, typically having a pH greater than 7.

Front

What are the characteristics of a base?

Back

Bases are typically bitter, slippery, have a pH greater than 7, and produce hydroxide ions (OH-).

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.