Forces in action

What is force?

• Drag and drop

• Point and click

• Push and pull

• Start and stop

We show force as vector because it has...

• Direction

• Size and direction

• Size

• Direction and duration

To show the resultant force in this picture we need to...

• Multiply forces

• Add forces

• Subtract forces

• Divide forces

To show the resultant force in this picture we need to...

• Multiply forces

• Add forces

• Subtract forces

• Divide forces

When all forces acting on an object are balanced, the object will...

• Increase speed

• Not move

• Fall down

• Slow down

Gravitational force between two objects depends on...

• Objects masses

• Objects weights

• Masses and distance between objects

• Distance between objects and their sizes

Gravitational force will be stronger if two objects are...

• Far away from each other and have small masses

• Close to each other and have small masses

• Far away from each other and have large masses

• Close to each other and have large masses

Earth's gravity is always directed...

• To the surface of the Earth

• To the center of the Earth

• Parallel to the ground

• Opposite to the movement direction

What is weight?

• Amount of matter in an object

• Gravity push on an object

• Gravity pull on an object

• Amount of energy in an object

What will change if you go to another planet?

• Your mass and weight

• Your weight

• Your mass

• None of these