Force and motion test 1 (O'Melia)

Front

What is the definition of force?

Back

A push or pull on an object that can cause it to change its velocity.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What does Newton's 1st Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity (p = m*v).

Front

What is the unit for momentum?

Back

The unit for momentum is kg•m/s.

Front

What is sliding friction?

Back

Friction where an object rubs against another surface.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects that are not moving, while kinetic friction acts on moving objects.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m*a).

Front

What is the relationship between mass and force?

Back

The greater the mass of an object, the more force is required to accelerate it.