The amount of matter in an object is called ___________ . [Choices: A. force, B. mass, C. weight]
B. mass
The pull of gravity on an object is called ___________ . [Choices: A. weight, B. energy, C. mass]
A. weight
TRUE or FALSE: Gravity is a kind of energy.
FALSE. It is a kind of force.
TRUE or FALSE: If your weight on Earth is 650 N, your weight in outer space would be 0 N.
TRUE. You don't have a weight in outer space.
What type of force your body produce when you push something? [Choices: A. friction force, B. tension force, C. applied force]
C. applied force
The 2 forces acting on an object in opposite directions is called a ___________ .
force pair
If you put a ball on the ground and it does not move, the forces acting on it are ____________ . [choices: A. balanced, B. unbalanced]
A. balanced
The picture shows two forces acting on a box in opposite directions. How much will be the net force? [choices: A. 0 Newtons, B. 20 Newtons, C. 4 Newtons]
C. 4 Newtons
What type of energy is inside this cake? [ choices: A. chemical, B. mechanical, C. Thermal]
A. chemical
You blow a pingpong ball and it rolled across the table. Is there work done on the pingpong ball? [Yes or No]
YES
What type of force is produced when two objects rub together?
friction
TRUE or FALSE: The wider a parachute is the slower it is to fall to the ground.
TRUE
What is the name of the force by air particles which fights the pull of gravity on a falling object?
Air resistance force
