science

What is force?

Define a balanced force

• Forces acting on

  objects that are

  moving toward

  one direction.

• Forces acting on

  objects that are

  not moving.

Answer explanation

Unbalanced

Forces

Forces acting on

objects that are

moving toward

one direction.

Which is not a type of force that are applied on objects?

• Gravity

• Heat

• Friction

What is friction?

• An upward force that fluids exert in all objects

• Earth’s gravitational pull on a body, lying on near the surface

  of the Earth

• A force that always oppose motion

What is a buoyant force?

• Earth’s gravitational pull on a body, lying on near the surface

  of the Earth

• An upward force that fluids exert in all objects

Answer explanation

Gravity

Earth’s gravitational pull on a body, lying on near the surface

of the Earth

Which is not a type of Friction?

• Rolling friction

• Fluid friction

• Sliding friction

• Running friction

There are also other types of force that can cause motion, which of the following is not?

• Wind

• Electricity

• Running

  water

• Dogs

• Magnets

The buoyancy of the water is not equal to the

weight of water

• True

• False

Answer explanation

The

buoyant force exerted on a floating object is equal to the weight of the

water that the object displaces

A metallic object that produces a magnetic field

or magnetic force

• Magnet

• Lightbulb

• Keys

• Charger

What do you call the ends of a magnet?

• Sticks

• Poles

• Ends