According to Newton's 3rd law, forces come in pairs. The wall crumbles because it wasn't strong enough to apply an equal amount of force back on the man pushing it.

According to Newton's 2nd law, the force equals the mass times the acceleration. The wall crumbles because it has more mass than the person.

According to Newton's 1st law, the person wants to stay in motion. The wall crumbles because the person stays in motion and no unbalanced force is acting on them.

According to Newton's second law, the force equals the mass times acceleration. The wall crumbles because the person has more mass than the wall.

Newton's 3rd law

Newton's 2nd law

Newton's 1st law

none of these

a fireman turns on a hose and is knocked backwards

it takes more force to move a bowling ball than a baseball

a magician pulls a tablecloth out from under dishes and they do not move

a picture hanging on the wall does not move until you push it

Newton's 1st law

Newton's 2nd law

Newton's 3rd law

none of these

sitting in a chair and the chair exerts the same amount of force as you when you sit on it

a skateboarder pushes with more force and begins to roll faster

a full grocery cart requires more force to move than an empty one

more dogs pulling on a snow sled goes faster than a single dog pulling on a snow sled

100 Newtons

50 Newtons

10 Newtons

5 Newtons

making the mass of the object smaller (Newton's second law)

reducing the frictional force acting on the object (Newton's 1st law)

increasing the force that you push the object with (Newton's second law)

all of these

10 Newtons

1 Newton

7 Newtons

2.5 Newtons

Newton's 1st law- an object's tendency to resist changes in motion

Newton's 2nd law - Force = mass x acceleration

Newton's 3rd law - every action has an equal and opposite reaction

none of these

Newton's 1st law

Newton's 2nd law

Newton's 3rd law

Newton's 4th law