2.3.1 Mass and weight BEST

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Diagnostic questions

Which weighs more?

What do you think about metal and the feathers?

4 points

I am sure this is correct

I think this is correct

I think this is wrong

I am sure this is wrong

A The same force is needed to lift both.

B The metal is harder to lift than the feathers.

C There is more gravity pulling on the feathers.

D The feathers weigh the same as the metal.

Clear selection

The biggest mass

a) Which of these do you think has the biggest mass?

1 point

Clear selection

b) What is the best reason for your answer?

1 point

A It is the biggest.

B It is made of the heaviest material.

C It is made of the most material.

D It is the one that needs most force to lift it.

Clear selection

Weight on the Moon

a) On Earth it takes 20 newtons to lift a hammer. What force is needed to lift the hammer on the Moon?

1 point

Clear selection

b) What is the best reason for your last answer?

1 point

A There is no gravity on the Moon.

B The force of gravity is different on the Moon.

C It is the same hammer.

D There is no air on the Moon.

Clear selection

Moon food

Which way of measuring food works on the Moon?

1 point

Clear selection

Blast off!

a) What happens to the weight of an astronaut as she blasts off?

1 point

A Her weight gets bigger.

B Her weight stays the same.

C Her weight gets smaller.

Clear selection

b) What is the best reason for your last answer?

1 point

A Her mass does not change.

B The force of gravity on her does not change.

C Her mass and the force of gravity on her do not change.

D The force of gravity on her changes.

E The rocket makes her speed up very quickly.

Clear selection

A very tall tower

Some boys are talking about what it would be like on top of the tower. Who do you think is right about what it is like on top of the very high tower? What mistakes do you think the others made?

4 points

Right

Wrong

Albert

Brandon

Cameron

Declan

Clear selection

Falling weight

a) The ride starts to fall. What happens to the weight Albert measures?

1 point

A His weight goes up.

B His weight stays the same.

C His weight goes down.

D He becomes weightless.

Clear selection

b) What is the best reason for your last answer?

1 point

A Albert speeds up very quickly.

B The force of gravity on Albert stays the same.

C Albert’s seat falls as he falls.

Clear selection

Clear form

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