Newtonś first law quiz

The force that is left over after all of the forces acting on an object are cancelled and/or combined is a net force. T or F

• True

• False

A 3N force and a 7N force act in the same direction on a moose. What is the net force on the moose?

• 10N

• 4N

• 7N

• 3N

A force can be defined as a push or a pull exerted on an object. T or F

• True

• False

The SI (metric) unit for force is a kilogram. T or F

• True

• False

A 3N force and a 7N force act in the opposite direction on a moose. What is the net force on the moose?

• 4N

• 10N

• 7N

• 3N

If the force of gravity suddenly stopped acting on the planets, what path would they take?

• Straight line

• Circular

• Elliptical

• Spiral

If a hockey puck slides across a perfectly frictionless floor, it will eventually slow down because of its inertia. T or F

• True

• False

What is the law of inertia?

• An object in motion stays in motion unless acted upon by an external force.

• An object at rest will start moving spontaneously.

• An object in motion will stop immediately without force.

• An object at rest will always remain at rest.

Explain in terms of inertia why the raw egg keeps spinning after you stop it and the hard boiled egg doesn’t.

• The raw egg's liquid interior keeps moving.

• The hard boiled egg is heavier.

• The raw egg is lighter.

• The hard boiled egg has more friction.

What is the NET FORCE of this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2