Gravitational Forces

A student drops a bowling ball and an apple from a third-story window. Both objects hit the ground at the same time. From the experiment, the student should conclude that

• the apple weighs more than the bowling ball

• more air friction is acting on the apple than on the bowling ball

• gravity pulls on both objects, causing them to fall at the same time.

Tags

NGSS.MS-PS2-4

What is gravitational force?

• It makes objects at rest start moving.
• It makes objects that are moving stop.
• The force of attraction between two objects.
• It pulls you into space.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

If a feather and a hammer are dropped at the same time on the moon, where there is no atmosphere, which one will hit the ground first?

• Neither, there is no gravity on the moon.
• hammer because it has more mass
• feather because it has less mass
• both will hit at the same time

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The SI units of force are measured in 

• Grams
• Newtons
• Pounds
• Kilograms

On which celestial object (outer space) would your mass be the greatest?

• Earth

• Jupiter

• Sun

• Your mass doesn't change on different celestial objects

Tags

NGSS.MS-PS2-4

Why do all of the planets orbit the sun rather than Earth?

• the sun has more mass

• the sun is a star

• the Earth is heavier

• the sun is in the middle of the milky way

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

As an object's mass increases, its gravitational pull will ____________.

• decrease
• increase
• stay the same
• get weaker

Tags

NGSS.MS-PS2-4

If an object has more mass, then it will

• weigh more.
• weigh less.
• weigh the same as an object with less mass.
• always have more volume than an object with less mass.

Tags

NGSS.MS-PS2-4

Why would you weigh less on the moon compared to Earth?

• less air
• less sunlight
• more gravitational pull
• less gravitational pull

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

Tags

NGSS.MS-PS2-4