Ch. II Review

True or False: The mass of a football is always equal to the weight of that football.

• True

• False

Looking at the data table in the picture, match the following vehicle with it's correct force

• 23,750 N

• SUV

• 16,150 N

• Truck

• 23, 520 N

• Motorcycle

• 25,620 N

• Car

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Read the example given in the picture. Drag and drop correct answer to each box. Not all answers will be used.

These ​ (a)   are an example of the law ​ (b)   .

• forces
• action-reaction
• unbalanced forces
• gravity
• force and acceleration

Tags

NGSS.MS-PS2-1

Motion is any change in ___________.

• accelration

• distance

• position

• velocity

Two astronauts are playing catch in space. The first astronaut throws the ball; and

• the ball moves, but the astronaut doesn’t.

• the ball moves, and so does the astronaut.

• the ball doesn’t move, but the astronaut does.

• the ball doesn’t move, and neither does the astronaut.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This graph shows that as an object’s mass increases its

• inertia increases

• inertia decreases

• acceleration increases

• acceleration decreases

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

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NGSS.MS-PS2-2

Two opposing forces are acting on a box. Which set of forces will cause the box to move to the RIGHT?

• a = 22 N, b = 22 N
• a = 12 N, b = 13 N
• a = 15 N, b = 14 N
• a = 0 N, b = 6 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two ropes are tied to a steel ring, and a student holds the free end of each rope. The students then pull on the ropes in a tug-of-war. If the forces exerted by the students are unbalanced, what happens to the ring?

• The ring remains at rest.
• The ring moves at a constant velocity
• The ring accelerates in the direction of the net unbalanced force
• The ring accelerates in the direction opposite the net unbalanced force.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If the mass of an object is doubled, how does that change the amount of force needed to stop it?

• Force needed is doubled
• Force needed stays the same
• Force needed become zero
• Force needed is tripled

Tags

NGSS.MS-PS2-2