Year 9 Science revision

In the free-body diagram, which of the following is the weight force acting on the balloon?

• 5120 N

• 950 N

• 1520 N

• 4050 N

Who wins the tug of war with what resultant force?

• The person on the left with 20 N

• The person on the left with 80 N

• The people on the right with 20 N

• The people on the right with 100 N

Tags

NGSS.MS-PS2-2

Which of the following could cause an acceleration?

• A balance between two forces
• A balance between three forces
• An imbalance between two forces
• Zero forces

Tags

NGSS.MS-PS2-2

At 60 seconds, how far had this object traveled? 

• 0 m
• 10 m
• 20 m
• 40 m

Tags

NGSS.MS-PS3-1

If Earth's mass doubled, your weight would ____________.

• increase because gravity increases.

• decrease because gravity increases.

• increase because gravity decreases.

• not change because you are still on Earth.

Two forces act on an object. One force has a magnitude of 10 N and is directed toward the north. The other force has a magnitude of 5 N directed toward the south. The object experiences a net force of _________.

• 5 N south

• 15 N north

• 50 N north

• 5 N north

If you drive 100 km/hr for six hours, how far will you go?

• 16.67 km

• 0.06 km

• 600 km

• 60 km

Every year I drive to Chicago Illinois. It is 570 km away. If I average 100 km/hr, how much time will I spend driving?

• 57000

• 0.175

• 5.7

• 570

Use this Free Body Diagram to answer the question:

This is a Free Body Diagram of a laptop on a table being pushed to the right with acceleration.

Name the force that is colored GREEN:

• Friction

• Natural

• Applied

• Gravitational

Use this Free Body Diagram to answer the question:

This is a Free Body Diagram of a laptop on a table being pushed to the right with acceleration.

Name the force that is colored BLUE:

• Air Resistance

• Normal

• Natural

• Gravitational