Unit 1, Module 1, Lesson 3 & 4 Review

True or False: When you drop an anvil on Earth, the anvil and Earth exert an equal force on each other.

• True

• False

If you push on a wall with a force of 30N, the force on you from the wall is

• 0 N

• 10 N

• 20 N

• 30 N

The statement "for every action, there is an equal and opposite reaction" is a statement of the Newton's

• 1st Law of Motion

• 2nd Law of Motion

• 3rd Law of Motion

• 3rd Law of Interia

Tags

NGSS.MS-PS2-1

When a rock hits the windshield of a car, the force of the car on the rock _________ the force of the rock on the car.

• is less than

• is equal to

• is greater than

Tags

NGSS.MS-PS2-1

Pick the best example of Newton's third law of motion in action.

• a. A rocket accelerating in space as a result of gasses and the rocket pushing each other in opposite directions.

• b. A rocket being towed to the launch pad while friction acts in the opposite direction.

• c. An asteroid moving around the Sun while being pulled toward the Sun.

• d. An asteroid continues to spin because nothing has exerted a force to stop it.

Based on Newton's third law of motion, when a person on a skateboard throws a heavy concrete block to the east, the person will be pushed to the _____________

• North

• South

• East

• West

Tags

NGSS.MS-PS2-1

True or False: If you throw a ball into the air, Earth exerts a force on the ball. The ball in the air exerts no force on Earth.

• True

• False

______________ is a force that one object can apply to another object by touching it.

• noncontact force

• force pair

• contact force

• magnetic force

Kelly sits on rock in a field. Which of the following correctly name force pairs?

• a. Kelly pushes on the rock, and the rock pushes Earth.

• b. Earth pushes on Kelly, and Kelly pulls on Earth.

• c. The rock pushes on Earth, and Earth pulls on the rock.

• d. Kelly pushes on the rock, and the rock pushes on Kelly.

What are the two types of collision?

• elastic collision

• forced collision

• opposite sollision

• inelastic collision