Gravitational and Frictional Force II

Which effect does gravity have on how high a person jumps?

• The weaker the gravity, the lower the jump.

• The weaker the gravity, the higher the jump.

• The stronger the gravity, the higher the jump.

• Gravity does not influence how high a person jumps.

Tags

NGSS.MS-PS2-2

What happens to the gravitational attraction between objects when the distance between them is increased?

• lesser

• nearer

• farther

• greater

Tags

NGSS.MS-PS2-4

Which action opposes gravity?

• skating downhill

• dropping a stone into a pond

• hammering a nail into a wooden plank on the floor

• lifting a box from the floor and placing it on top of the table

Tags

NGSS.5-PS2-1

Gravity is a force of repulsion that exists between two objects which act towards each other.

• True

• False

Answer explanation

Gravity is a force of Attraction.

Tags

NGSS.MS-PS2-4

In order to jump, what force do we need to overcome?

• friction

• gravity

• mass

• wind

Tags

NGSS.MS-PS2-4

Imagine the Earth lost its gravity. What will happen to objects on it?

• All objects will float in the air.

• All objects will fall on the ground.

• Everything will just stay in place.

• Only the lighter objects will float in the air.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Which of the following statement/s is/are True?

I. If the mass of the object is small, the gravitational force is weak.

II. If the mass of the object is small, the gravitational force is strong.

III. If the mass of the object is big, the gravitational force is strong.

IV. If the mass of the object is big, the gravitational force is weak.

• I and II

• II and III

• I and III

• II and IV

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which of the following statement/s is/are True?

I. If the mass of the object is small, the gravitational force is weak.

II. If the mass of the object is small, the gravitational force is strong.

III. If the mass of the object is big, the gravitational force is strong.

IV. If the mass of the object is big, the gravitational force is weak.

• I and II

• II and III

• I and III

• II and IV

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following statement/s is/are True?

I. Gravity decreases the motion of objects going down.

II. Gravity increases the motion of objects going down.

III. Gravity increases the motion of objects going up.

IV. Gravity decreases the motion of objects going up.

• I and II

• II and III

• I and III

• II and IV

Which of the following statement/s is/are True?

I. Friction is greater in rough surface and object with bigger surface area

II. Friction is greater in rough surface and object with smaller surface area

III. Friction is lesser in smooth surface and object with smaller surface area

IV. Friction is lesser in smooth surface and object with bigger surface area

• I and II

• II and III

• I and III

• II and IV

Tags

NGSS.MS-PS2-2