Forces and Motion

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces rub against each other.

Front

What is the effect of mass on motion?

Back

Increasing the mass of an object makes it harder to accelerate when a force is applied, according to Newton's second law of motion.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion. It occurs when the total forces acting on an object are not equal.

Front

What is the engineering design process?

Back

The engineering design process is a series of steps that engineers follow to come up with a solution to a problem, including identifying the problem, brainstorming, designing, testing, and improving.

Front

What does it mean to identify a problem in engineering?

Back

Identifying a problem means recognizing what needs to be improved or solved in a design or system.

Front

How does force affect the speed of an object?

Back

Increasing the force applied to an object generally increases its speed, as long as the mass remains constant.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is the purpose of testing materials in engineering?

Back

Testing materials helps engineers determine which materials will perform best for specific applications, such as reducing friction in a warehouse floor.

Front

What is the role of data in scientific investigations?

Back

Data is used to support or refute a hypothesis by providing evidence based on observations and measurements.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.