PS Unit 6 Review

Which of the following is an example of a non-renewable energy source?

• Solar energy

• Wind energy

• Coal

Which statement illustrates Newton’s first law?

• A stone will not move unless something pushes or pulls it.

• A ball rolling across the floor eventually slows down.

• Both a and b

Which object has the greatest inertia?

• tennis ball

• bowling ball

• beach ball

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What force causes a skater sliding on the ice to gradually slow down?

• balanced force

• inertia

• friction

Which of the following will result in the greatest acceleration?

• 56 N acting on a 1-kg box

• 56 N acting on a 2-kg box

• 23 N acting on a 2-kg box

Tags

NGSS.MS-PS2-2

A 0.25 kg steel ball experiences a net force of 1.15 N as it rolls down a ramp. What is the acceleration of the ball?

• 0.29 m/s²

• 0.90 m/s²

• 4.6 m/s²

Tags

NGSS.MS-PS2-2

What is a force?

• A push or pull on an object

• The speed of an object

• The mass of an object

Tags

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A baseball accelerates downward at 9.8 m/s². The force pulling the ball downward is 1.4 N. What is the mass of the baseball?

• 3.2 kg

• 0.4 kg

• 0.14 kg

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NGSS.MS-PS2-2

What is velocity?

• Speed in a given direction

• Distance in a given direction

• Speed without direction

The force exerted on the racket by a hit tennis ball is the

• gravitational force

• reaction force

• acceleration

Tags

NGSS.MS-PS2-1