There is no force acting on the book.
The book has no inertia.
There is no force acting on the table.
The book is in equilibrium
A bicycle rolling down a hill
A baseball player sliding into 2nd base
A diver falling through the air to a pool
All of the above experience some friction.
Newton’s first law
The force that objects exert on each other because of their masses
The downward pull on the Earth
The friction that an object has put on it
A car hits a tree, and its motion stops
A breeze blows, and a sailboat moves
A book is pushed, and it moves across the table
A person drops a ball, and it falls to the ground
It pushes them away.
It pulls them in
It makes them larger.
It makes them move faster.
And equal in direction
And in opposite direction
Cancel each other
None of the above
Force causes the object to change speed or direction.
Force causes the object to experience gravity.
Force causes the object to experience balance.
Force causes the object to change shape or mass.
Shape and size
Ball rolling down hill
Apple falling from tree
One football player is stronger than the other
When there is no changes in motion
The push or pull of an object.
A force that works against motion.
A model built by an engineer.
When an object changes position.
Stop, move, change speed, or change direction.
Melt into a liquid and move.
Create nuclear energy.
Evaporate into air.
The object's motion can speed up
The object's motion can slow down
The object's motion can stay the same
The object's motion can stop
The forces must be weak
The forces must be unbalanced
The forces must be strong
The forces must be balanced