Q3 Sci4 Understanding Forces SSA

What is motion?

• A force applied to an object

• A change in position relative to a fixed reference point

• The act of pushing or pulling an object

• A stationary object that does not move

What is a reference point?

• A moving object used to determine force

• A stationary object used to determine motion

• An object that applies force

• An object that cannot change position

Which of the following is true about force?

• It can only be seen, not felt.

• It is the result of motion.

• It is a push or a pull that causes motion.

• It is only needed to open doors.

What happens when you push an object?

• The object moves closer to you.

• The object moves away from you.

• The object stays stationary.

• The object disappears.

What is an example of a pull?

• Pushing a cart

• Pulling a trolley bag

• Closing a door

• Pushing a chair

Why can force be felt and measured?

• Because it is visible to the human eye

• Because of the effects it causes, such as motion

• Because it does not interact with objects

• Because it remains stationary

What happens if you do not exert enough force on a door?

• The door moves away from you.

• The door moves closer to you.

• The door does not move.

• The door disappears.

What is a contact force?

• A force that acts without touching an object

• A force that is applied when two or more objects touch

• A force that always opposes motion

• A force applied by the muscles of the body

Which activity demonstrates muscular force?

• Rolling a ball on a rough surface

• Plowing a field with the help of a carabao

• A book resting on a table

• Using a lubricant on a machine

What is frictional force?

• A force that stretches objects like ropes or cables

• A force that acts between two surfaces in contact

• A force exerted by the muscles of the arms

• A force that prevents objects from passing through each other