Newton's Laws

A 50 kg skater pushed by a friend accelerates 5 m/s². How much force did the friend apply? To solve this problem you must do -

• 50 ÷ 5

• 5 ÷ 50

• 50 x 5

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A picture is hanging on a wall and does not move.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Tags

NGSS.HS-PS2-1

Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Tags

NGSS.MS-PS2-2

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Tags

NGSS.MS-PS2-2

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

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-2

A force of 250 N is applied to an object that accelerates at a rate of 5 m/s². What is the mass of the object? To solve this problem you must do -

• 250 ÷ 5

• 5 ÷ 250

• 250 x 5

A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object.

• 160 m/s²

• 6.4 m/s²

• 0.16 m/s²

Tags

NGSS.MS-PS2-2

What is the unit for force?

• m/s²

• kg

• N

• F