8th CPC 4 Study Guide 24/25

Front

What happens to friction when pavement is wet?

Back

Friction decreases when pavement is wet.

Front

What is the condition for a car to be balanced?

Back

A car is balanced when it maintains a constant speed, such as when cruise control is set.

Front

Which law of motion states that more force is needed to move objects with greater mass?

Back

Newton's 2nd Law of Motion states that force equals mass times acceleration (F=ma).

Front

What are physical properties?

Back

Physical properties are characteristics of matter that can be observed or measured without changing the substance, such as mass, density, and color.

Front

What does Newton's 2nd Law of Motion explain about force and mass?

Back

It explains that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the relationship between mass and gravity?

Back

Gravity is a force that pulls objects toward each other; more mass means a stronger gravitational pull.

Front

What is an example of a physical property?

Back

Color is an example of a physical property.

Front

What does it mean for an object to be in motion?

Back

An object is in motion if it changes its position relative to a reference point.

Front

What is the effect of applying the same force to different masses?

Back

The object with less mass will accelerate more than the object with greater mass.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.