Forces Test Review

Where is the magnetic force of a magnet the strongest?

• at both poles

• in the north pole

• in the south pole

• in the middle

Tags

NGSS.MS-PS2-3

Thrust is to forward motion like gravity is to _______________ motion.

• backward

• downward

• forward

• upward

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Which is TRUE?

• A magnet attracts all metals

• All magnets have a magnetic fields

• Opposite poles of a magnet repel

• Like poles of a magnet attract

Mrs. Walker is pushing the piano west with a force of 22 Newtons. Mrs. Robertson is helping her push the same piano west with a force of 22 Newtons. What is the net force on the piano?

• 44 Newtons

• 44 Newtons west

• 0 Newtons west

• 0 Newtons

Tags

NGSS.MS-PS2-2

What statement is FALSE?

• force is always measured in units of Newtons

• gravity works against lift

• thrust is always opposite the direction of motion

• drag works against thrust

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following is a FALSE statement?

• the farther apart objects are, the weaker the gravity is between them

• the heavier an object is, the stronger its gravitational force is

• gravity depends on mass and the roughness of the surfaces

• gravity is a force of attraction between objects

Tags

NGSS.MS-PS2-4

Which of the following choices best represents force?

• a push or a pull acting on an object

• a push or a pull acting without an object

• a push or a pull always causing acceleration

• a push or a pull always causing motion

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

When the net forces equal 0 N, the forces are _________________________.

• balanced

• kinetic

• static

• unbalanced

Which of the following causes an object to begin moving?

• either balanced or unbalanced forces

• unbalanced forces

• any combination of forces

• balanced forces

Tags

NGSS.MS-PS2-2

Which of the following is an example of balanced forces?

• a baby being pushed in a stroller at various speeds

• a child speeding up while running down a path

• a car slowing down while traveling on a highway

• a tire swing hanging motionless from a tree