Abeka 9th Science Test 2 p1

Who discovered the laws of motion and gravitation, laying the foundation for much of modern physical science?

• Sir Isaac Newton
• Albert Einstein
• Galileo Galilei
• Niels Bohr

What quantity of motion is defined as the product of an object's mass and velocity?

• acceleration
• momentum
• force
• energy

What is the SI unit of work?

• pascal
• joule
• newton
• watt

Whose teachings dominated scientific thought for almost two thousand years?

• Newton
• Aristotle
• Plato
• Galileo

What is any mathematical quantity that has both magnitude and direction?

• Scalar
• Vector
• Matrix
• Point

What is the velocity at which air resistance stops a falling object from accelerating?

• Terminal velocity

• Cavendish velocity

• Free-fall velocity

• Velocity of a thrown object

What is the velocity of an object that traveled 19 m in 2.0s?

• 7.5 m/s
• 10 m/s
• 8 m/s
• 9.5 m/s

What is the ideal mechanical advantage of an inclined plane with a length of 3.0m and a height of 1.5m?

• 2.5
• 2.0
• 3.5
• 1.5

What is a simple machine consisting of a wheel over which a rope or cable passes?

• Pulley
• Wedge
• Inclined Plane
• Lever

A crate was being pushed to the left by one person with a force of 35N and to the right by another person with a force of 26N. What is the net force acting on the crate?

• 9N to the right
• 9N to the left
• 35N to the left
• 26N to the left