PhySci Gravity and Free-Fall

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

Tags

NGSS.HS-PS2-4

Which of the following will not change in different gravitational fields?

• weight
• force
• mass
• pounds

A person would weigh more on Jupiter than on the Earth because . . .

• Jupiter has more mass, and therefore more gravity
• Jupiter has less mass, and therefore more gravity
• Jupiter has more mass, and therefore less gravity
• Jupiter has less mass and therefore less gravity

Tags

NGSS.MS-PS2-4

What is the velocity of an object that has been falling freely in a vacuum for 2 seconds?

• 10 m/s down

• 12 m/s down

• 20 m/s down

• 40 m/s down

An object initially at rest falls freely near Earth's surface. How long does it take the object to attain a speed of 100 m/s?

• 0.1 s

• 10 s

• 100 s

• 1000 s

A ball drops from a tall building. The ball strikes the sidewalk 2.0 seconds later. What is the velocity of the ball when it hits the sidewalk?

• 20 m/s

• 10 m/s

• 5 m/s

• 12 m/s

A ball drops from a tall building. The ball strikes the sidewalk 3.0 seconds later. What distance did the ball fall?

• 20 m

• 45 m

• 30 m

• 10 m

• 63 m

A baseball is thrown up into the air. What direction is the velocity of the ball?

• upward

• downward

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A baseball is thrown up into the air. What direction is the acceleration of the ball?

• upward

• downward

Tags

NGSS.MS-PS2-4

A baseball is thrown up into the air. What happens to the acceleration as the ball rises in the air?

• the acceleration increases

• the acceleration decreases

• the acceleration remains constant

Tags

NGSS.MS-PS2-2