Exam Review: The Laws of Motion

Which term explains why a crash-test dummy lunges forward during a car crash?

• Inertia

• Gravity

• Velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which type of friction exists between a surface and moving air?

• Fluid friction

• Static friction

• Sliding friction

What type of friction occurs when a sled slides down a snowy hill?

• Fluid friction

• Static friction

• Sliding friction

When you rub your hands together to warm them up, which type of friction is primarily involved?

• Fluid friction

• Static friction

• Sliding friction

What type of friction is experienced by a boat moving through water?

• Fluid friction

• Static friction

• Sliding friction

Which type of friction is encountered when pushing a box across a floor?

• Fluid friction

• Static friction

• Sliding friction

What type of friction prevents a book from sliding down when it is resting on an inclined desk?

• Fluid friction

• Static friction

• Sliding friction

What kind of friction exists between your shoe and the ground just before you start walking?

• Fluid friction

• Static friction

• Sliding friction

When the forces on an object are balanced, what happens to its motion?

• It changes direction

• It speeds up

• The object remains at rest

Tags

NGSS.HS-PS2-1

If one force of 30N and another force of 85N result in a net force of 55N, which term describes the two forces?

• Negative forces

• Balanced forces

• Unbalanced forces

Tags

NGSS.HS-PS2-1