8th Grade Physics

Front

Which is a unit of speed?

Back

m/s is a unit of speed that measures distance in meters traveled per second.

Front

What does a graph showing a straight line with a positive slope indicate about an object's motion?

Back

It indicates that the object is moving away from the start at a constant speed.

Front

What is the formula for force?

Back

The formula for force is F = m(a), where F is force, m is mass, and a is acceleration.

Front

What is acceleration?

Back

Acceleration is the change in velocity over time.

Front

What is a push or pull on an object called?

Back

A push or pull on an object is called a force.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in SI is the Newton (N).

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the law of inertia?

Back

The law of inertia states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What is the relationship between mass and acceleration in Newton's second law?

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.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.