DANCING IN THE LIGHT

________________ is the amount of matter present in an

object

• Gravity

• Weight

• Mass

• Force

_______________ is the amount of force that pulls objects

towards the earth (gravity)

• Weight

• Force

• Drag

• Mass

Look at the picture below. What is the upward force that works on the parachute?

• Air resistance

• Gravity

• Water resistance

• Weight

Look at the picture below. What is effect of force that we can know from that picture?

• Force cannot move an object when it is at rest.

• Force does not let us do work.

• Force does not let the object move from one place to another.

• Force helps the object change its speed.

____________ act in pairs and in different directions.

• Gravity

• Force

• Energy

• Work

Which surface would cause the

greatest friction?

• Metal

• Plastic

• Sandpaper

• Marble

Look at the picture. What is part A and B of the light diagram?

• A: Incident ray

  B: Reflected ray

• B: Incident ray

  A: Reflected ray

Look at the picture below. Joshua and Mary are playing on a see-saw. What force is pulling each of the children onto the ground?

Look at the picture below. Joshua and Mary are playing on a see-saw. Joshua has a mass of 39 kilograms and Mary has a mass of 43 kilograms. What are their weights?

Look at the picture below. Joshua and Mary are playing on a see-saw. Is the force balanced or unbalanced? Give a reason for your answer.