SPH3U FORCES UNIT REVIEW

Which is true of an elevator rising at a constant speed of 3.0 m/s?

You push on an object, but it does not move. Which force are you unable to overcome?

A 23 N force [Right] is used to pull a 10 kg box against a 3.0 N friction force. Acceleration = ?

F_net = F_A always if …

Newton's 1st law states that a force is required to change an object's uniform motion or velocity.

An elevator filled with people has a mass of 2245kg. What is the force of tension as the elevator goes up at 0.55m/s²?

This astronaut moving at a constant speed through space best describes...

The mass of an object is the gravitational force on it.

Are you prepared for this test?

Which is NOT true about the COEFFICIENT OF FRICTION? It is...

The acceleration of an object is proportional to

A 1500kg satellite orbits Earth. m_Earth=5.9722×10²⁴kg. If the Earth and satellite are separated 6.98×10⁶m, what is Fg?

The floor exerts a normal force of 52N [up] on a chair. Gravity acting on the chair is 52N [down].  The net force is:

When Bob punches Fred in the face after a heated discussion (which you should not do by the way)...

An elevator with mass 1000kg accelerates up at 2.0 m/s². What is the net force acting on it?

An elevator accelerates UPWARD at 2.0 m/s².The passenger has a mass of 85 kg.  Find the force the floor exerts on him.

If an elevator is accelerating upward from rest, you would feel ...

_________ is transmitted through a rope or chain when pulled from either end or both ends together.

Dynamics relates the motion of objects to the forces acting on them.

Which of the following is NOT one of the 4 fundamental forces in the universe?

The weight of this box is...

Resultant vectors can be broken down into x, y and z components.

The force applied to the bullet equals the force acting back on the gun describes...

Which of the following is the official Star Wars day?

This diagram is a simple drawing of an object showing all the forces that are acting on it.

A 23 N force [Right] is used to pull a box against a 3.0 N friction force. The box will…

Which scientist (1600s) developed a framework for the laws of motion and universal gravitation?

_________ is the product of mass and acceleration.

The SI unit for mass is grams.

The larger sphere doesn't accelerate faster despite having more force of gravity acting on it..

When two surfaces are in contact ____ forces oppose any motion between them and are always opposite to the direction

As a rocket launches successfully, which of the following is NOT NECESSARILY true?

If you throw a baseball straight up, its acceleration at the highest point is 9.8 m/s² and velocity is zero.

The shape of the path a projectile follows...

A force of 7.0 N is equivalent to:

m₁=0.700kg and m₂=1.50kg. No friction. How fast does the cart accelerate and what is the tension in the cable?