Modified True/False
Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.
1. The five key equations for uniformly accelerated motion use the variables position, initial velocity, final
velocity, acceleration and time interval.
2. The normal force is always perpendicular to the surface between two objects in contact.
3. Kinetic energy is the stored energy that an object has because of its position and the applied gravitational force.
4. A baseball player usually catches a ball by moving their hand backwards in the direction of the ball's motion.
This reduces the force of impact of the collision because the momentum change is decreased.
5. As the radius of orbit of a satellite around a given central body increases, the speed of the satellite increases.
6. Consider a straight conductor carrying an electric current. If you place your thumb in the direction of the
conventional current, your curled fingers indicate the direction of the magnetic field lines.
7. Each point on a wave front acts as a point source for a new spherical wavelet that propagates away from the
source.
8. The resolution of an optical instrument is its ability to separate closely spaced objects into distinctly different
images limited by diffraction.
