Q.1.
In a diagram, a force is represented by what?
Q.2.
What causes a backpack full of books to feel heavy when you lift it?
Q.3.
Which unit should be used to measure mass (the amount of matter an object contains)?
Q.4.
What is a force?
Q.5.
What are forces measured in?
Q.6.
In which direction does gravity exert force (as experienced by people or objects on Earth)?
Q.7.
Forces can cause objects to change what?
Q.8.
If you roll a ball across the carpet, which forces will cause it to slow down and then stop?
Q.9.
Which of the following is a force?
Q.10.
Which of the following would you use when measuring force?