Newton's Lab — Interactive Physics Playground

Gravity Controls

Star Mass 150

Planet Mass 30

Moon Mass 8

Planet Orbit Distance 160

F = ma Controls

Mass (kg) 10

Force (N) 50

Friction 0

Newton's Cradle

Pull back one or more balls and release to see conservation of momentum and energy in action.

Pull Angle 30

Balls to pull 1

Projectile Motion

Launch Speed 60

Launch Angle 45

Show Trajectory Trail

Strong Nuclear Force

Number of Quarks 3

Force Strength 100

Tension Stiffness 80

Weak Nuclear Force

Decay Probability 50

Nucleus Size 60

Animation Speed 1.0×

Magnetism

Magnet Strength 80

Number of Magnets 1

Show Field Lines Show Compass Show Iron Filings

Electromagnetic Induction

Coil Turns 5

Magnet Speed 60

Magnet Strength 80

Live Physics Data

Velocity

0.0

Momentum

0.0

Kinetic Energy

0.0

Potential Energy

0.0

Net Force

0.0

Acceleration

0.0

Newton's Laws

1st Law: An object at rest stays at rest, and an object in motion stays in motion with the same speed and direction, unless acted upon by an unbalanced force.

🧠 Check Your Understanding

What happens to the acceleration if you double the mass while keeping the same force?