Forces (Friction & Gravity)

Front

What type of friction keeps an object at rest on a surface?

Back

Static Friction

Front

How do you calculate momentum?

Back

Momentum = mass × velocity

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What type of friction occurs when an object rolls over a surface?

Back

Rolling Friction

Front

What is fluid friction?

Back

Friction that occurs when an object moves through a liquid or gas.

Front

True or False: It takes more force to start moving an object than to keep it moving.

Back

True

Front

What is the unit of mass in the metric system?

Back

Kilograms (kg)

Front

What is the formula for calculating weight?

Back

Weight = mass × gravity (W = m × g)

Front

What is the effect of gravity on objects in free fall?

Back

All objects accelerate towards the Earth at approximately 9.81 m/s² regardless of their mass.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object; weight is the force exerted by gravity on that mass.