Force, Friction and Newton's Laws

Front

Why is it harder for the boy in Image B to get down the hill? Options: Motion, Friction, Work, Displacement

Back

Friction

Front

The girl on the sled will remain in motion unless

Back

she is stopped by an outside force.

Front

A Newton is a unit of...

Back

force

Front

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is its force?

Back

5 Newtons

Front

Mass x acceleration = ?

Back

force

Front

It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes

Back

Newton's second law, the law of acceleration

Front

Which one is balanced? Options: top, bottom, both, neither

Back

top

Front

If a person is picking up a book with the force of 50 N and the gravity is pushing down with 15 N, what is the net force?

Back

35 N

Front

When a bird is flying, their wings are pushing DOWN against the air. In turn, the air pushes __________ against their wings allowing them to fly.

Back

UP

Front

When a heavy football player and a light one run into each other, who exerts more force? (pushes harder)

Back

They exert the same force on each other.