Physics Flashcard on Force and Motion

Front

What is a cause-and-effect relationship?

Back

A cause-and-effect relationship explains how one event (the cause) leads to another event (the effect). For example, if a plant wilts (effect), it may be due to lack of water (cause).

Front

What are forces?

Back

Forces are pushes or pulls that can change the motion of an object. They can vary in strength and direction.

Front

What is required to change the velocity of an object?

Back

A force is required to change the velocity of an object. This can involve speeding it up, slowing it down, or changing its direction.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. For example, a car moving at 60 km/h north has a velocity.

Front

What happens when a force is applied to a stationary object?

Back

When a force is applied to a stationary object, it can cause the object to start moving.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.

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 inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest unless acted upon by a force.

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in kilograms. It affects how much force is needed to change the object's motion.

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time. It can be an increase or decrease in speed.