Motion and Stability Study Guide

A ______________ force is when two equal forces push/pull in the opposite direction.

Ex. Two men are pushing on a cart (on opposite sides) with the same exact amount of

force and the cart does NOT move because it is balanced.

• balanced

• unbalanced

Tags

NGSS.3-PS2-1

A ____________ force is when one force is larger than the other. The object will then

change its speed or the direction it is moving in.

• balanced

• unbalanced

Tags

NGSS.MS-PS2-2

Name 4 forces that affect whether a balanced/unbalanced force occurs? gravity, push, _______, friction

• air resistance

• weight

• pull

• tension

Tags

NGSS.MS-PS2-2

A ball is soaring through the air and no one catches the ball. What force causes the ball to fall to the ground?

• Gravity

• Push

• Pull

• Friction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Spheres A, B, and D have a larger mass than sphere C. What would we need to increase in sphere C, to cause it to attract to the other 3 spheres?

• Increase the size

• Increase the distance

• Increase the arrow

• Increase the mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The Sun has more _________ than the other planets in our solar system because the Sun is more massive.

• energy

• heat

• mass

• distance

Tags

NGSS.MS-PS2-4

The diagram represents circular motion. A ball, object B, is attached to a string. The ball is twirling around point O on the string at a constant speed. What is true about the ball's motion? The ball's position and _________ have changed

• Nothing about the motion of the ball has changed

• The ball's position and speed has changed

• The ball's position and direction have changed

• The ball's position has changed, but its direction has not

The motion of the earth around the sun is best described as __________ motion.

• curved motion.

• vibrating motion.

• projectile motion.

• straight line motion.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

If a ball is thrown in any direction, what will cause the ball to fall back to earth?

• weak electric force of the earth.

• strong magnetic force of the earth.

• strong gravitational force of the earth.

• force of air resistance on the ball.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A man is whirling a rubber cork, tied with a string to his finger, over his head. The motion of the cork is similar to the motion of a planet in the Solar System around the Sun. Which force in the Solar System is similar to the tension in the string? ___________

• Nuclear force

• Magnetic force

• Gravitational force

• Electrostatic force

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4