Write 3 questions about the topic and answer the with full sentences.
What type of force is upthrust? Upthrust is a contact force applied by water or air.
What is the name of the force that pulls objects towards the centre of the earth? The force that pulls towards the centre of the earth is gravity.
Why the gravity of the earth is bigger than the gravity from the moon? Because earth’s mass is bigger than moon’s.
These are the answers for the exercises on pages 94 and 95.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.