GRAVITY AND SPEED

What do you need to calculate the speed of an object?

• A.Distance and weight

• B.Distance and time

• C. Time and weight

• D. Speed and distance

2. A bicycle travels 15 meters in 3 seconds. What is its speed? Use the formula​

What is velocity?

• A. It is a force that pushes an object forward.

• B. It is the amount of space an object occupies.

• C. It is the speed at which an object changes position in a specific direction.

To calculate velocity, do we need to know the distance between two points and the time taken to move from one point to the other?

• TRUE

• FALSE

What is a vector quantity?

• A. A physical quantity that only has size, such as mass or temperature.

• B. A physical quantity that has both magnitude (size) and direction, such as velocity or force.

• C. A physical quantity that only has direction, but no size.

What is gravity?

• • A) A force that repels objects away from each other.

• • B) A force that pulls objects toward each other.

• • C) A type of energy that objects with mass produce.

  • GRAVEDADGRAVEDAD

According to Newton’s law of gravitation, which two factors determine the strength of gravitational force between two objects?

• • A) Mass and volume of the objects.

• • B) Mass and volume of the objects.

• • C) Distance and temperature of the objects.

What does Einstein’s theory of general relativity say about gravity?

• • A) Gravity is a force caused by magnetic fields.

• • B) Gravity is caused by the Earth’s rotation.

• • C) Gravity is the result of objects with mass curving space and time.

• • D) Gravity only exists in space.