Warmup 4.2

Which of the following is an example of a gravitational force?

• The force that keeps a satellite in orbit around Earth

• The force that slows down a sliding box on a surface

• The force exerted by a compressed spring

• The force applied by a person pushing a cart

Tags

NGSS.MS-PS2-4

What type of force is responsible for the resistance experienced when two surfaces slide against each other?

• Gravitational force

• Frictional force

• Magnetic force

• Tension force

Identify the force that acts perpendicular to the surface of an object in contact with another surface.

• Frictional force

• Normal force

• Gravitational force

• Applied force

Which of the following is an example of an applied force?

• The force of gravity acting on a falling apple

• The force exerted by a person pushing a lawnmower

• The force of air resistance on a moving car

• The force between two magnets

A book is resting on a table. Which force is acting upwards on the book?

• Gravitational force

• Frictional force

• Normal force

• Tension force

• 98 N

• 9.8 N

• 100 N

• 10 N

Tags

NGSS.MS-PS2-4

Which of the following forces is responsible for the acceleration of an object down a slope?

• Frictional force

• Gravitational force

• Normal force

• Tension force

Tags

NGSS.MS-PS2-4

A block is being pushed across a rough surface. Which force opposes the motion of the block?

• Gravitational force

• Frictional force

• Normal force

• Applied force

Which of the following is an example of a non-contact force?

• Frictional force

• Gravitational force

• Tension force

• Normal force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which force is responsible for keeping a book stationary on a tilted desk?

• Gravitational force

• Frictional force

• Normal force

• Tension force