Newtons law of motion

A(n) __________ is a push or pull.

• newton
• acceleration
• force
• momentum

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

One object has twice as much mass as another object. The first object also has also twice as much...

• velocity
• gravitational acceleration
• inertia
• all of these

What happens to the motion of an object when the forces acting on it are balanced?

• The motion changes direction.
• The motion does not change.
• The motion speeds up.
• The motion slows down.

How is an object's mass related to the force needed to accelerate the object?

• Mass is not related to the force needed.
• The smaller the mass, the greater the force needed.
• The greater the mass, the greater the force needed.
• The greater the mass, the smaller the force needed.

If lil Wayne, who is an alien, weighs 578 Newtons on Earth and 96 Newtons on the moon, his mass

• is greater on earth.
• is greater on the moon.
• is greater on earth and less on the moon.
• is the same on the moon and the earth.

What is the speed of an object that travels 20 meters in 4 seconds?

• 80 m/s
• 0.2 m/s
• 5 m/s
• 24 m/s

If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object?

• 150 Newtons
• 15 Newtons
• 150 kilograms
• 100 kilograms

Tags

NGSS.MS-PS2-2

When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.

• True
• False

What happens to an object if the forces acting on it are unbalanced?

• Its motion changes.
• The net force is zero.
• Its motion does not change.
• The object always comes to a stop.