8th Grade Physics Quizizz

When Linh jumps forward off a skateboard, then the skateboard moves back.  This is an example of _____________.

• Newton's 3rd Law
• Newton's 2nd Law
• Newton's 1st Law

Tags

NGSS.MS-PS2-1

What amount of force is needed for a 15 kg horse to accelerate at 3 m/s² ?

• 5N
• 12N
• 45N

Tags

NGSS.MS-PS2-2

What amount of force is needed to push a 25 kg go-cart to accelerate at 5 m/s²?

• 125 N
• 5 N
• 20 N

Tags

NGSS.MS-PS2-2

What is the mass of a basketball that has a force of 10 N and that is passed at an acceleration of 0.5 m/s²?

• 5 kg
• 20 kg
• 9.5 kg

Tags

NGSS.MS-PS2-2

A kid riding a bike hits a curb and the bike stops, but the kid flies off the bike at the same speed the bike was moving.  This is an example of __________.

• Newton's Laws of Motion
• Newton's Laws of Mass
• Newton's Laws of Force

Tags

NGSS.MS-PS2-1

A ball rolling across the floor with friction acting in the opposite direction will change its motion according to _________.

• Newton's Law of Action-Reaction
• Newton's Law of Force
• Newton's Law of Inertia

Tags

NGSS.MS-PS2-2

What is the acceleration of a 10 kg car moving against 70 N of air resistance blowing eastward and a motor moving the car westward at 100 N?

• 10 m/s²
• 3 m/s²
• 7 m/s²

Tags

NGSS.MS-PS2-2

What is the mass of a football that is passed with a force of 8 N and accelerates at 0.2 m/s²?

• 40 kg
• 1.6 kg
• 7.8 kg

Tags

NGSS.MS-PS2-2

What is the acceleration of a 20 kg boat moving against 60 N of air resistance blowing westward and a motor moving the boat eastward at 100 N?

• 5 m/s²
• 2 m/s²
• 1.25 m/s²

Tags

NGSS.MS-PS2-2

_______________ includes the direction of an object in motion.

• Speed
• Velocity
• Density