KSSM Form 2 Science Chapter 8

___________________ is the force that resists movement between two surfaces that are in contact with each other.

• Gravitational force

• Frictional force

• Elastic force

• Normal force

The ___________ of an object is defined as the gravitational force acting on it.

• weight

• mass

Force has magnitude only.

• True

• False

1kg =

• 1N

• 10N

• 100N

• 100g

A wooden block that float on water experiences___________

• normal force

• buoyant force

Force can change the mass of an object.

• True

• False

When the buoyant force is more than the weight of an object, the object will___________

• sink

• float

In a lever, a fixed support point is known as ____________

• force

• load

• fulcrum

Choose the correct type of lever.

Nutcracker

• First class lever

• Second class lever

• Third class lever

Choose the correct type of lever.

Pliers

• First class lever

• Second class lever

• Third class lever